Distributive laws are fundamental algebraic properties that describe how multiplication interacts with addition or subtraction. They are essential for simplifying…
The disjunction property in intuitionistic logic asserts that if a statement P or Q is provable, then either P alone…
The disjunction introduction rule states that from any single proposition, one can infer a disjunction including that proposition and any…
Disjunction elimination, also known as proof by cases, is a fundamental rule of inference. It allows concluding a statement R…
Disjunction, symbolized as 'or', is a fundamental logical connective. It asserts that at least one of the connected statements is…
Discharge is the act of eliminating an assumption within a logical derivation. It's a crucial step, often used to prove…
A directed relation is one where the order matters. If an element is related to another, it doesn't necessarily mean…
A crucial lemma in Gödel's incompleteness theorems. It states that for any formula with one free variable, there exists a…
A derivable rule is a logical rule that can be derived from the existing axioms and inference rules of a…
A denumerable set is one whose elements can be matched one-to-one with the natural numbers. This concept is fundamental to…