Combining Texts

All the ideas for 'Necessary Existents', 'On the Algebra of Logic' and 'works'

expand these ideas     |    start again     |     specify just one area for these texts

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3 ideas

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

8720	A logic is 'relevant' if premise and conclusion are connected, and 'paraconsistent' allows contradictions [Priest,G, by Friend]

10. Modality / B. Possibility / 8. Conditionals / d. Non-truthfunction conditionals

14303

Truth-functional conditionals have a simple falsification, when A is true and B is false [Peirce]

19. Language / D. Propositions / 3. Concrete Propositions

19216

Propositions (such as 'that dog is barking') only exist if their items exist [Williamson]