Combining Texts

Ideas for 'fragments/reports', 'Philosophical Logic' and 'There Are No Abstract Objects'

expand these ideas     |    start again     |     choose another area for these texts

display all the ideas for this combination of texts

---

7 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 / D. Modal Logic ML / 6. Temporal Logic

15413

With four tense operators, all complex tenses reduce to fourteen basic cases [Burgess]

4. Formal Logic / D. Modal Logic ML / 7. Barcan Formula

15415

The temporal Barcan formulas fix what exists, which seems absurd [Burgess]

4. Formal Logic / E. Nonclassical Logics / 2. Intuitionist Logic

15430

Is classical logic a part of intuitionist logic, or vice versa? [Burgess]

15431

It is still unsettled whether standard intuitionist logic is complete [Burgess]

4. Formal Logic / E. Nonclassical Logics / 5. Relevant Logic

15429

Relevance logic's → is perhaps expressible by 'if A, then B, for that reason' [Burgess]