Basic Philosophical Terms and Concepts

REASONING

Objective Theory of Truth (OTT)

One Truth Value Principle (OTV)

Statement S is NECESSARY =df.

Statement S is IMPOSSIBLE =df.

Statement S is CONTINGENT =df.

ARGUMENT

Argument VALID iff

Alternative definition of VALIDITY

Argument COGENT iff

STRONG ARGUMENT

BELIEF PRINCIPLE (BP)

EVIDENTIALISM (E)

PHILOSOPHY