Learn about the conjunction introduction, a fundamental rule of inference in logic. It permits combining two separate statements into a…
A conditional proof is a logical technique used to establish a conditional statement. It involves assuming the antecedent and deducing…
Classical logic, founded on bivalence, non-contradiction, and excluded middle, is the traditional system for propositional and predicate logic. It forms…
A bound variable is a symbol within a logical formula that is governed by a quantifier. It's essential for defining…
An atomic formula is the most basic building block in formal logic. It's a predicate symbol applied to a sequence…
Arity defines the number of arguments or operands a function, operation, or relation accepts. In logic, it specifies the number…
The Aristotelian comprehension schema, represented as (∃x)Φ → (∃Y)(∀x)(Yx ↔ Φ) in second-order logic, defines the existence of a property…
A predicate is a statement or assertion that can be true or false. In logic, it's the part of a…