Linked from
The 54 pages that link to Propositional logic, each with the reason it gives.
Logical connectiveNarrower topic: It studies arguments built from logical connectives.
George BooleNarrower topic: Boole turned combinations of propositions into algebraic expressions.
Frank P. RamseyNarrower topic: Ramsey’s early work extended the formal analysis of logical systems.
Peirce's lawNarrower topic: Peirce's law is a formula within this logic.
Modus ponendo tollensNarrower topic: This inference form is evaluated within propositional logic.