Every human knows the invariants, the bridge between known and unknown, only from the variants. A variant reveals its invariants when its state varies. Every subject is an invariant recognizing system. Every subject systematically follows (observes) the variants and recognizes the invariants (patterns/charateristics/statistics) in the observations. The recognized invariants enable the subject to predict the unknown from the known. Every human research is to find the bridge to move from known to unknown. The basic design of every science and philosophy is to find the bridge to move from known to unknown.

Biochemistry is an invariant recognizing system to recognize the invariants (the biochemical characteristics) of the variants (the biochemicals).

Mathematics is an invariant recognizing system to recognize the invariants (the solutions) of the variants (the variables).

Statistics is an invariant recognizing system to recognize the invariants (the statistics) of the variants (the variables).

Sociology is an invariant recognizing system to recognize the invariants (the social characteristics) of the variants (the sociables).

Linguistics is an invariant recognizing system to recognize the invariants (the linguistic characteristics) of the variants (the languages).

Zoology is an invariant recognizing system to recognize the invariants (the animal characteristics) of the variants (the animals).

Botany is an invariant recognizing system to recognize the invariants (the plant characteristics) of the variants (the plants).

Genetics is an invariant recognizing system to recognize the invariants (the genetic characteristics) of the variants (the characters of animals and plants).

History is an invariant recognizing system to recognize the invariants (the historical characteristics) of the variants (the historical events).

Geography is an invariant recognizing system to recognize the invariants (the geographical characteristics) of the variants (the features of points on earth).

Enzymology is an invariant recognizing system to recognize the invariants (the enzyme characteristics) of the variants (the enzymes).

Chemistry is an invariant recognizing system to recognize the invariants (the chemical characteristics) of the variants (the chemical substances).

Economics is an invariant recognizing system to recognize the invariants (the economical characteristics) of the variants (the economies).

Genomics is an invariant recognizing system to recognize the invariants (the characteristics of genomes) of the variants (the genomes of organisms).

Proteomics is an invariant recognizing system to recognize the invariants (the protein characteristics) of the variants (the proteins).

Astronomy is an invariant recognizing system to recognize the invariants (the astronomical characteristics) of the variants (the stellar bodies).

Astrology is an invariant recognizing system to recognize the invariants (the astrological characteristics) of the variants (the life of individuals and positions of astronomical bodies).

Pharmacology is an invariant recognizing system to recognize the invariants (the pharmacological characteristics) of the variants (the drugs).

Physiology is an invariant recognizing system to recognize the invariants (the physiological characteristics) of the variants (the physiological processes).

Psychology is an invariant recognizing system to recognize the invariants (the psychological characteristics) of the variants (the psychological processes).

Pathology is an invariant recognizing system to recognize the invariants (the pathological characteristics) of the variants (the pathological processes).

Geology is an invariant recognizing system to recognize the invariants (the geological characteristics) of the variants (the geological processes).

Microbiology is an invariant recognizing system to recognize the invariants (the microbial characteristics) of the variants (the microorganisms).

Biotechnology is an invariant recognizing system to recognize the invariants (the biotechnical characteristics) of the variants (the biotechnical processes).

Crystallography is an invariant recognizing system to recognize the invariants (the crystal characteristics) of the variants (the crystals).

Electrodynamics is an invariant recognizing system to recognize the invariants (the characteristics of electric charge movements) of the variants (the movements of electric charges).

Thermodynamics is an invariant recognizing system to recognize the invariants (the characteristics of energy movements) of the variants (the movements of energies).

Optics is an invariant recognizing system to recognize the invariants (the characteristics of light movements) of the variants (the light movements).

Electronics is an invariant recognizing system to recognize the invariants (the characteristics of electrons) of the variants (the electrons).

Mechanics is an invariant recognizing system to recognize the invariants (the characteristics of particle movements) of the variants (the particle movements).

Acoustics is an invariant recognizing system to recognize the invariants (the characteristics of sounds) of the variants (the sounds).

Ecology is an invariant recognizing system to recognize the invariants (the characteristics of organisms in their environment) of the variants (the organisms in their invironment).

Geometry is an invariant recognizing system to recognize the invariants (the characteristics of shapes) of the variants (the shapes).

Politics is an invariant recognizing system to recognize the invariants (the political characteristics) of the variants (the systems of social governance).

Calculus is an invariant recognizing system to recognize the invariants (the characteristics of differentials and integrals) of the variants (the differentials and integrals).

Criminology is an invariant recognizing system to recognize the invariants (the characteristics of crimes) of the variants (the crimes).

Epistemology is an invariant recognizing system to recognize the invariants (the characteristics of acquiring knowledge) of the variants (the ways of acquiring knowledge).

Phonetics is an invariant recognizing system to recognize the invariants (the phonetical characteristics) of the variants (the phonemes).

Semantics is an invariant recognizing system to recognize the invariants (the characteristics of meanings) of the variants (the meanings).

Cardiology is an invariant recognizing system to recognize the invariants (the characteristics of hearts) of the variants (the hearts).

Nephrology is an invariant recognizing system to recognize the invariants (the characteristics of nephrons) of the variants (the nephrons).

Hepatology is an invariant recognizing system to recognize the invariants (the characteristics of livers) of the variants (the livers).

Neurology is an invariant recognizing system to recognize the invariants (the characteristics of brains) of the variants (the brains).

Ophthalmology is an invariant recognizing system to recognize the invariants (the characteristics of eyes) of the variants (the eyes).

Endocrinology is an invariant recognizing system to recognize the invariants (the characteristics of endocrine glands and their secretions) of the variants (the endocrine glands and their secretions).

Electrochemistry is an invariant recognizing system to recognize the invariants (the electrochemical characteristics) of the variants (the electrochemicals).

Colloidal chemistry is an invariant recognizing system to recognize the invariants (the colloidal characteristics) of the variants (the colloids).

Immunology is an invariant recognizing system to recognize the invariants (the immunological characteristics) of the variants (the immune responses).

Entomology is an invariant recognizing system to recognize the invariants (the insect characteristics) of the variants (the insects).

Ornithology is an invariant recognizing system to recognize the invariants (the bird characteristics) of the variants (the birds).

Oceanography is an invariant recognizing system to recognize the invariants (the ocean characteristics) of the variants (the oceans).

Meteorology is an invariant recognizing system to recognize the invariants (the meteorological characteristics) of the variants (the atmosphere).

Anatomy is an invariant recognizing system to recognize the invariants (the anatomical characteristics) of the variants (the internal structures).

Morphology is an invariant recognizing system to recognize the invariants (the morphological characteristics) of the variants (the external forms of organisms).

Mycology is an invariant recognizing system to recognize the invariants (the characteristics of fungi) of the variants (fungi).

Alagalogy is an invariant recognizing system to recognize the invariants (the characteristics of algae) of the variants (algae).

Virology is an invariant recognizing system to recognize the invariants (the characteristics of virus) of the variants (virus).

Wave mechanics is an invariant recognizing system to recognize the invariants (the characteristics of particle waves) of the variants (particle waves).

Acarology is an invariant recognizing system to recognize the invariants (the characteristics of ticks and mites) of the variants (ticks and mites).

Actinobiology is an invariant recognizing system to recognize the invariants (the characteristics of the effects of radiation upon living organisms under radiation) of the variants (the effects of living organisms upon radiation).

Actinology is an invariant recognizing system to recognize the invariants (the characteristics of effects of light on chemicals) of the variants (the effects of light on chemicals).

Aerology is an invariant recognizing system to recognize the invariants (the characteristics of the free atmosphere) of the variants (the free atmospheres).

Aeropalynology is an invariant recognizing system to recognize the invariants (the characteristics of pollen graisn and spores in the atmosphere) of the variants (the pollen grains and spores in the atmosphere).

Aetiology is an invariant recognizing system to recognize the invariants (the characteristics of the causation of disease) of the variants (the causataions of diseases).

Agnoiology is an invariant recognizing system to recognize the invariants (the characteristics of of the things which cannot be known) of the variants (things which cannot be known).

Agrobiology is an invariant recognizing system to recognize the invariants (the characteristics of plant nutrition and growth in relation to soil conditions) of the variants (the plant nutrition and growth in relation to soil conditions).

Allergology is an invariant recognizing system to recognize the invariants (the characteristics of the causes and treatment of allergies) of the variants (the causes and treatment of allergies).

Andrology is an invariant recognizing system to recognize the invariants (the characteristics of male health and diseases) of the variants (the male health and diseases).

anesthesiology is an invariant recognizing system to recognize the invariants (the characteristics of anesthesia and anesthetics) of the variants (anesthesia and anesthetics).

Angelology is an invariant recognizing system to recognize the invariants (the characteristics of angels) of the variants (the angels).

Angiology is an invariant recognizing system to recognize the invariants (the characteristics of the anatomy of blood and lymph vascular systems) of the variants (the anatomy of blood and lymph vascular systems).

Anthropology is an invariant recognizing system to recognize the invariants (the characteristics of humans) of the variants (humans).

Arachnology is an invariant recognizing system to recognize the invariants (the characteristics of spiders and theri kins) of the variants (spiders and their kins).

archaeology is an invariant recognizing system to recognize the invariants (the characteristics of ancient histories) of the variants (ancient histories).

Archaeozoology is an invariant recognizing system to recognize the invariants (the characteristics of the relationships between humans and animals overtime through examination of animal remains at archaeological sites) of the variants (the relationships between humans and animals overtime through examination of animal remains at archaeological sites).

Audiology is an invariant recognizing system to recognize the invariants (the characteristics of hearing) of the variants (hearing).

Autecology is an invariant recognizing system to recognize the invariants (the characteristics of the ecology of any individual species) of the variants (the ecology of any individual species).

Axiology is an invariant recognizing system to recognize the invariants (the characteristics of values and value judgements) of the variants (the values and valuse judgements).

Balneology is an invariant recognizing system to recognize the invariants (the characteristics of bathing and thier application to disease) of the variants (bathing and disease).

Bioclimatology is an invariant recognizing system to recognize the invariants (the characteristics of the effects of climate on living organisms) of the variants (the effects of climate on living organisms).

Bioecology is an invariant recognizing system to recognize the invariants (the characteristics of the relationship of organisms to each other and to their environment) of the variants (the relationships of organisms to each other and to their environment).

Biology is an invariant recognizing system to recognize the invariants (the characteristics of life) of the variants (the lives).

Biometeorology is an invariant recognizing system to recognize the invariants (the characteristics of the effects of atmospheric conditions on living organisms) of the variants (the effects of atmospheric conditions on living organisms).

Bryology is an invariant recognizing system to recognize the invariants (the characteristics of bryophytes) of the variants (bryophytes).

Campanology is an invariant recognizing system to recognize the invariants (the characteristics of the art of bell ringing) of the variants (the art of bell ringing).

Carpology is an invariant recognizing system to recognize the invariants (the characteristics of the structure of seed and fruit) of the variants (the structure of seed and fruit).

Cerealogy is an invariant recognizing system to recognize the invariants (the characteristics of the crop circles) of the variants (crop circles).

Cetology is an invariant recognizing system to recognize the invariants (the characteristics of the marine mammals) of the variants (the marine mammals).

Chorology is an invariant recognizing system to recognize the invariants (the characteristics of the relationship of biological phenomena to their locations) of the variants (the relationship of biological phenomena to their locations).

Chronology is an invariant recognizing system to recognize the invariants (the characteristics of the things in the order of time) of the variants (the things in the order of time).

Cosmology is an invariant recognizing system to recognize the invariants (the characteristics of the cosmos) of the variants (the cosmos).

Cryptology is an invariant recognizing system to recognize the invariants (the characteristics of encrypting and decrypting secret messages) of the variants (encrypting and decrypting secret messages).

Cynology is an invariant recognizing system to recognize the invariants (the characteristics of dogs) of the variants (dogs).

Cytology is an invariant recognizing system to recognize the invariants (the characteristics of cells) of the variants (cells).

Deltiology is an invariant recognizing system to recognize the invariants (the characteristics of collecting pictures of postcards) of the variants (collecting pictures of postcards).

Demonology is an invariant recognizing system to recognize the invariants (the characteristics of demons) of the variants (demons).

Dendrochronology is an invariant recognizing system to recognize the invariants (the characteristics of the age of trees and the records in their rings) of the variants (the age of trees and the records in their rings).

Dendrology is an invariant recognizing system to recognize the invariants (the characteristics of trees) of the variants (trees).

Dermatology is an invariant recognizing system to recognize the invariants (the characteristics of skins) of the variants (skins).

Dialectology is an invariant recognizing system to recognize the invariants (the characteristics of dialects) of the variants (dialects).

Exobiology is an invariant recognizing system to recognize the invariants (the characteristics of the lives in outer space) of the variants (lives in outer space).

Ecclesiology is an invariant recognizing system to recognize the invariants (the characteristics of the christian churches) of the variants (the christian churches).

Ecophysiology is an invariant recognizing system to recognize the invariants (the characteristics of the interrelationship between an organism's physical functioning and its environment) of the variants (the interrelationship between an organism's physical functioning and its environment).

Electrophysiology is an invariant recognizing system to recognize the invariants (the characteristics of the electric phenomena and bodily processes) of the variants (the electric phenomena and bodily processes).

Embryology is an invariant recognizing system to recognize the invariants (the characteristics of embryos) of the variants (embryos).

Emetology is an invariant recognizing system to recognize the invariants (the characteristics of emetics) of the variants (emetics).

Enigmatology is an invariant recognizing system to recognize the invariants (the characteristics of puzzles) of the variants (puzzles).

Epidemiology is an invariant recognizing system to recognize the invariants (the characteristics of epidemics) of the variants (epidemics).

Eschatology is an invariant recognizing system to recognize the invariants (the characteristics of the final events in the history of mankind or world) of the variants (the final events in the history of mankind or world).

Ethnology is an invariant recognizing system to recognize the invariants (the characteristics of races) of the variants (races).

Ethnomusicology is an invariant recognizing system to recognize the invariants (the characteristics of music in society) of the variants (music in society).

Ethology is an invariant recognizing system to recognize the invariants (the characteristics of animal behaviour) of the variants (animal behaviours).

Etymology is an invariant recognizing system to recognize the invariants (the characteristics of the origin of words) of the variants (origin of words).

Evolutionary biology is an invariant recognizing system to recognize the invariants (the characteristics of processes of biological evolution) of the variants (processes of biological evolution).

Gastrology is an invariant recognizing system to recognize the invariants (the characteristics of diseases of stomach and intestines) of the variants (diseases of stomach and intestines).

Genealogy is an invariant recognizing system to recognize the invariants (the characteristics of the relationships within families) of the variants (the relationships within families).

Genecology is an invariant recognizing system to recognize the invariants (the characteristics of genecology) of the variants (genecology).

Geochronology is an invariant recognizing system to recognize the invariants (the characteristics of virus) of the variants (virus).

Geomorphology is an invariant recognizing system to recognize the invariants (the characteristics of landforms) of the variants (landforms).

Gerontology is an invariant recognizing system to recognize the invariants (the characteristics of old age) of the variants (old age).

Glaciology is an invariant recognizing system to recognize the invariants (the characteristics of glaciers) of the variants (glaciers).

Grammatology is an invariant recognizing system to recognize the invariants (the characteristics of writing systems) of the variants (writing systems).

Graphology is an invariant recognizing system to recognize the invariants (the characteristics of handwriting and the character of the writer) of the variants (handwriting and the character of the writer).

Gynecology is an invariant recognizing system to recognize the invariants (the characteristics of medicines of women) of the variants (medicines of women).

Hematology is an invariant recognizing system to recognize the invariants (the characteristics of blood) of the variants (blood).

Heliology is an invariant recognizing system to recognize the invariants (the characteristics of sun) of the variants (sun).

Helioseismology is an invariant recognizing system to recognize the invariants (the characteristics of the vibrations and oscillations in the sun) of the variants (the vibrations and oscillations in the sun).

Helminthology is an invariant recognizing system to recognize the invariants (the characteristics of parasitic worms) of the variants (parasitic worms).

Herbology is an invariant recognizing system to recognize the invariants (the characteristics of the therapeutic use of plants) of the variants (the therapeutic use of plants).

Herpetology is an invariant recognizing system to recognize the invariants (the characteristics of the reptiles and amphibians) of the variants (the reptiles and amphibians).

Histology is an invariant recognizing system to recognize the invariants (the characteristics of living tissues) of the variants (living tissues).

Histopathology is an invariant recognizing system to recognize the invariants (the characteristics of the structure of diseased tissues) of the variants (the structure of diseased tissues).

Historiology is an invariant recognizing system to recognize the invariants (the characteristics of the writings and practices of historians) of the variants (the writings and practices of historians).

Horology is an invariant recognizing system to recognize the invariants ( the characteristics of making time pieces, measuring time and timekeeping) of the variants (making time pieces, measuring time and timekeeping).

Hydrogeology is an invariant recognizing system to recognize the invariants (the characteristics of the underground water) of the variants (the underground water).

Hydrology is an invariant recognizing system to recognize the invariants (the characteristics of water) of the variants (water).

Ichthyology is an invariant recognizing system to recognize the invariants (the characteristics of fish) of the variants (fish).

Ichnology is an invariant recognizing system to recognize the invariants (the characteristics of fossil footprints, tracks and burrows) of the variants (fossil footprints, tracks and burrows).

Killology is an invariant recognizing system to recognize the invariants (the characteristics of virus) of the variants (human beings killing other human beings).

Kinesiology is an invariant recognizing system to recognize the invariants (the characteristics of the movements in relation to human anatomy) of the variants (the movements in relation to human anatomy).

Kymatology is an invariant recognizing system to recognize the invariants (the characteristics of wave motions) of the variants (wave motions).

Limnology is an invariant recognizing system to recognize the invariants (the characteristics of freshwater environments) of the variants (freshwater environments).

Lithology is an invariant recognizing system to recognize the invariants (the characteristics of rocks) of the variants (rocks).

Lymphology is an invariant recognizing system to recognize the invariants (the characteristics of the lymph system and glands) of the variants (the lymph system and glands).

Malacology is an invariant recognizing system to recognize the invariants (the characteristics of mollusks) of the variants (mollusks).

Mammology is an invariant recognizing system to recognize the invariants (the characteristics of mammals) of the variants (mammals).

Methodology is an invariant recognizing system to recognize the invariants (the characteristics of methods) of the variants (methods).

Metrology is an invariant recognizing system to recognize the invariants (the characteristics of measurements) of the variants (measurements).

Mineralogy is an invariant recognizing system to recognize the invariants (the characteristics of minerals) of the variants (minerals).

Musicology is an invariant recognizing system to recognize the invariants (the characteristics of musics) of the variants (musics).

Myology is an invariant recognizing system to recognize the invariants (the characteristics of muscles) of the variants (muscles).

Myrmecology is an invariant recognizing system to recognize the invariants (the characteristics of ants) of the variants (ants).

Mythology is an invariant recognizing system to recognize the invariants (the characteristics of myths) of the variants (myths).

Nanotechnology is an invariant recognizing system to recognize the invariants (the characteristics of design of machines at the molecular level) of the variants (design of machines at the molecular level).

Neonatology is an invariant recognizing system to recognize the invariants (the characteristics of diseases and the care of newborn infants) of the variants (diseases and the care of newborn infants).

Nephology is an invariant recognizing system to recognize the invariants (the characteristics of clouds) of the variants (clouds).

Nosology is an invariant recognizing system to recognize the invariants (the characteristics of diseases) of the variants (diseases).

Oceanology is an invariant recognizing system to recognize the invariants (the characteristics of oceans) of the variants (oceans).

Odontology is an invariant recognizing system to recognize the invariants (the characteristics of the structure, development and abnormalities of the teeth) of the variants (the structure, development and abnormalities of the teeth).

Oncology is an invariant recognizing system to recognize the invariants (the characteristics of cancer) of the variants (cancer).

Ontology is an invariant recognizing system to recognize the invariants (the characteristics of existences) of the variants (existences).

Oology is an invariant recognizing system to recognize the invariants (the characteristics of eggs) of the variants (eggs).

Orology is an invariant recognizing system to recognize the invariants (the characteristics of mountains and their mapping) of the variants (mountains and their mapping).

Osteology is an invariant recognizing system to recognize the invariants (the characteristics of bones) of the variants (bones).

Paleoanthropology is an invariant recognizing system to recognize the invariants (the characteristics of ancient humans and human origin) of the variants (ancient humans and human origin).

Paleoclimatology is an invariant recognizing system to recognize the invariants (the characteristics of climate prior to the widespread availability of records of temperature, preicipitation and other instrumental data) of the variants (climate prior to the widespread availability of records of temperature, preicipitation and other instrumental data).

Palynology is an invariant recognizing system to recognize the invariants (the characteristics of pollens) of the variants (pollens).

Parapsychology is an invariant recognizing system to recognize the invariants (the characteristics of psychic phenomenon that defy conventional scientific explanations) of the variants (psychic phenomenon that defy conventional scientific explanations).

Parasitology is an invariant recognizing system to recognize the invariants (the characteristics of parasites) of the variants (parasites).

Pedology is an invariant recognizing system to recognize the invariants (the characteristics of soils) of the variants (soils).

Penology is an invariant recognizing system to recognize the invariants (the characteristics of prison management and criminal rehabilitation) of the variants (prison management and criminal rehabilitation).

Petrology is an invariant recognizing system to recognize the invariants (the characteristics of sedimentary organic matter in rocks) of the variants (sedimentary organic matter in rocks).

Phonology is an invariant recognizing system to recognize the invariants (the characteristics of vocal sounds) of the variants (vocal sounds).

Phrenology is an invariant recognizing system to recognize the invariants (the characteristics of the shape of a person's skull and persons character traits) of the variants (the shape of a person's skull and persons character traits).

Planktology is an invariant recognizing system to recognize the invariants (the characteristics of planktons) of the variants (planktons).

Pneumology is an invariant recognizing system to recognize the invariants (the characteristics of the lungs and related organs) of the variants (the lungs and related organs).

Primatology is an invariant recognizing system to recognize the invariants (the characteristics of primates) of the variants (primates).

psychobiology is an invariant recognizing system to recognize the invariants (the characteristics of psychic of organisms with regard to their functions and structures) of the variants (psychic of organisms with regard to their functions and structures).

Psychophysiology is an invariant recognizing system to recognize the invariants (the characteristics of the physiological base of psychological processes) of the variants (the physiological base of psychological processes).

Radiology is an invariant recognizing system to recognize the invariants (the characteristics of ionizing radiations) of the variants (ionizing radiations).

Rheology is an invariant recognizing system to recognize the invariants (the characteristics of the flows) of the variants (the flows).

Rheumatology is an invariant recognizing system to recognize the invariants (the characteristics of rheumatics diseases) of the variants (rheumatic diseases).

Rhinology is an invariant recognizing system to recognize the invariants (the characteristics of nose and its diseases) of the variants (nose and its diseases).

Seismology is an invariant recognizing system to recognize the invariants (the characteristics of earthquakes) of the variants (earthquakes).

Selenology is an invariant recognizing system to recognize the invariants (the characteristics of moon) of the variants (moon).

Semiology is an invariant recognizing system to recognize the invariants (the characteristics of signs) of the variants (signs).

Serology is an invariant recognizing system to recognize the invariants (the characteristics of blood serum) of the variants (blood serum).

Sexology is an invariant recognizing system to recognize the invariants (the characteristics of sexes) of the variants (sexes).

Sociobiology is an invariant recognizing system to recognize the invariants (the characteristics of the effect of evolution on ethology) of the variants (the effect of evolution on ethology).

Speleology is an invariant recognizing system to recognize the invariants (the characteristics of caves) of the variants (caves).

Stomatology is an invariant recognizing system to recognize the invariants (the characteristics of the mouth and its diseases) of the variants (the mouth and its diseases).

Symbology is an invariant recognizing system to recognize the invariants (the characteristics of interpretations of symbols) of the variants (interpretations of symbols).

Symptomatology is an invariant recognizing system to recognize the invariants (the characteristics of symptoms) of the variants (symptoms).

Synecology is an invariant recognizing system to recognize the invariants (the characteristics of the ecological interrelationships among communities of organisms) of the variants (the ecological interrelationships among communities of organisms).

Technology is an invariant recognizing system to recognize the invariants (the characteristics of the practical arts) of the variants (the practical arts).

Teleology is an invariant recognizing system to recognize the invariants (the characteristics of final causes) of the variants (final causes).

Teratology is an invariant recognizing system to recognize the invariants (the characteristics of wonders) of the variants (wonders).

Theriology is an invariant recognizing system to recognize the invariants (the characteristics of mammals) of the variants (mammals).

Thremmatology is an invariant recognizing system to recognize the invariants (the characteristics of breeding domestic plants and animals) of the variants (breeding domestic plants and animals).

Tocology is an invariant recognizing system to recognize the invariants (the characteristics of childbirth) of the variants (childbirth).

Toxicology is an invariant recognizing system to recognize the invariants (the characteristics of poisons) of the variants (poisons).

Traumatology is an invariant recognizing system to recognize the invariants (the characteristics of wounds and injuries caused by accidents or assaults and their surgical treatment and repair) of the variants (wounds and injuries caused by accidents or assaults and their surgical treatment and repair).

Tribology is an invariant recognizing system to recognize the invariants (the characteristics of friction and lubrication) of the variants (friction and lubrication).

Typology is an invariant recognizing system to recognize the invariants (the characteristics of classification) of the variants (classification).

Urology is an invariant recognizing system to recognize the invariants (the characteristics of treatment of diseases of the urogenital tract) of the variants (treatment of diseases of the urogenital tract).

Venereology is an invariant recognizing system to recognize the invariants (the characteristics of venereal diseases) of the variants (venereal diseases).

Vexillology is an invariant recognizing system to recognize the invariants (the characteristics of flags) of the variants (flags).

Victimology is an invariant recognizing system to recognize the invariants (the characteristics of victims of crime) of the variants (victims of crime).

Xenobiology is an invariant recognizing system to recognize the invariants (the characteristics of non-terrestrial life) of the variants (non-terrestrial life).

Xylology is an invariant recognizing system to recognize the invariants (the characteristics of woods) of the variants (woods).

Zymology is an invariant recognizing system to recognize the invariants (the characteristics of fermentations) of the variants (fermentations).