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Ideas for 'fragments/reports', 'Axiomatic Theories of Truth' and 'Proper Names'

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5 ideas

4. Formal Logic / B. Propositional Logic PL / 1. Propositional Logic

8077	Stoic propositional logic is like chemistry - how atoms make molecules, not the innards of atoms [Chrysippus, by Devlin]

4. Formal Logic / B. Propositional Logic PL / 2. Tools of Propositional Logic / e. Axioms of PL

20791

Chrysippus has five obvious 'indemonstrables' of reasoning [Chrysippus, by Diog. Laertius]

4. Formal Logic / E. Nonclassical Logics / 3. Many-Valued Logic

16335

In Strong Kleene logic a disjunction just needs one disjunct to be true [Halbach]

16334

In Weak Kleene logic there are 'gaps', neither true nor false if one component lacks a truth value [Halbach]

4. Formal Logic / F. Set Theory ST / 1. Set Theory

16309

Every attempt at formal rigour uses some set theory [Halbach]