An abstraction principle is a formula stating that two abstract objects are identical if and only if the objects they…
The abstraction operator is a function implicitly defined by an abstraction principle. It's a core concept in various fields, enabling…
The absorption law states that if P implies Q, then adding a conjunction R to P does not alter the…
Abelian logic is a specific type of relevance logic. It notably rejects the inference rule of contraction while accepting the…
An A-proposition, a type of categorical proposition, asserts that all members of the subject category are included in the predicate…
A tautology is a statement or formula that is true in every possible interpretation. It's a fundamental concept in logic,…
Quantifiers are symbols in logic that specify the quantity of elements in a set that satisfy a certain condition. They…
The protasis, the conditional clause in a hypothetical statement, sets the condition. It's often introduced by 'if' and precedes the…
A predicate is a statement or assertion that can be true or false. In logic, it's the part of a…
Disjuncts are words or phrases that present alternatives, often connected by 'or'. They play crucial roles in logical propositions and…