Disjunction Elimination
Disjunction elimination, also known as proof by cases, is a fundamental rule…
Brouwer-Heyting-Kolmogorov Interpretation
The Brouwer-Heyting-Kolmogorov (BHK) interpretation equates statement truth with proof existence, forming the…
Understanding Axioms: Foundational Truths in Logic and Mathematics
An axiom is a fundamental statement accepted as true without proof. It…