Combining Texts

Ideas for 'The Science of Knowing (Wissenschaftslehre) [1st ed]', 'Theory of Knowledge (2nd edn)' and 'Reasoning and the Logic of Things'

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4 ideas

5. Theory of Logic / B. Logical Consequence / 4. Semantic Consequence |=

19237

Deduction is true when the premises facts necessarily make the conclusion fact true [Peirce]

5. Theory of Logic / C. Ontology of Logic / 1. Ontology of Logic

19256

Our research always hopes that reality embodies the logic we are employing [Peirce]

5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / c. not

22017

Normativity needs the possibility of negation, in affirmation and denial [Fichte, by Pinkard]

5. Theory of Logic / E. Structures of Logic / 6. Relations in Logic

19238

The logic of relatives relies on objects built of any relations (rather than on classes) [Peirce]