НЕПРОТИВОРЕЧИЕ

Non-Contradiction

A basic condition which knowledge must fulfil, and according to which a proposition P and its negation not-P cannot be simultaneously deduced within the bounds of every theory. Failure to fulfil this condition makes a theory invalid, because it could prove any proposition.

The dialectical law of the unity and conflict of opposites, which demands the disclosure of objective contradictions of every development, and the demand of Non-Contradiction of knowledge are not mutually exclusive. The proposition of logical Non-Contradiction applies to the method of presenting knowledge and implies that our thoughts and arguments must be consistent and free from contradictions (see Contradiction, Law of; Axiomatic Theory, Non-Contradiction of).