Impossibility: Understanding What Cannot Be
Impossibility defines the state of something being not possible, whether due to…
Understanding Logical Implication
Logical implication connects two statements: if the first (antecedent) is true, the…
Imperative Logic
Imperative logic is a formal system for analyzing commands and imperatives, differing…
Immediate Inference
Immediate inference is a direct reasoning process where a conclusion is drawn…
Iff: Understanding ‘If and Only If’
Iff, short for 'if and only if,' is a crucial logical connective…
Identity in Philosophy and Logic
Identity signifies the unique relation of an entity to itself, embodying the…
Hypothetical Syllogism
A hypothetical syllogism is a logical argument with two conditional statements and…
Hybrid Logic
Hybrid logic enhances modal logic by allowing direct reference to specific worlds…
Hilbert’s Program
An ambitious project by David Hilbert to formalize all mathematics and prove…
Higher-Order Variables in Logic
A higher-order variable represents functions, predicates, or relations, distinguishing it from variables…