Combining Texts

All the ideas for 'Science and Method', 'Identity in Substances and True Propositions' and 'The Concept of Logical Consequence'

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4 ideas

5. Theory of Logic / B. Logical Consequence / 1. Logical Consequence

14180

Etchemendy says fix the situation and vary the interpretation, or fix interpretations with varying situations [Etchemendy, by Read]

14181

Validity is where either the situation or the interpretation blocks true premises and false conclusion [Etchemendy, by Read]

6. Mathematics / A. Nature of Mathematics / 2. Geometry

10245

One geometry cannot be more true than another [Poincaré]

7. Existence / C. Structure of Existence / 6. Fundamentals / c. Monads

19405

Substances are in harmony, because they each express the one reality in themselves [Leibniz]