Abstract

Problem of scientific proof is very important philosophical problem of science. This problem studied great ancient Greek philosophers Pythagoras, Thales, Anaximander, Democritus, Socrates, Plato, Aristotle, Anaxagoras, Pyrronas, Agrippas and others. Science has not the truth without the proof and the proof without the truth. Common feature of all scientific method is the proof of its results. Methodology of science is developing and looking for reliable model of a proof. Any expedient of scientific proof has the single beginning, final number of middle parts and the single ending. Strictness of the proof depends on correcting the distribution of the functions between parts of the proof. Functions for beginning stage: purposeful, meaning, analytic, regulative, controllable, organized, selective, stimulant, valued, directive, determining, base, explanatory, prognostic. Main functions for middle parts: the join of the beginning and ending stage in the completeness, the exception of contradictions and chances, the explications of necessary arguments and the strict algorithm. A number of middle parts are logical optimum. Functions for ending stage: crowned, resulting, productive, pragmatic, conventional, synthesis, modal, interpretative. A development of methodology has not finish. Methodological ideals improve continually.