Combining Texts

All the ideas for 'works', 'Commentary on Sentences' and 'The Concept of Logical Consequence'

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

---

4 ideas

2. Reason / D. Definition / 1. Definitions

15927

Definition just needs negation, known variables, conjunction, disjunction, substitution and quantification [Weyl, by Lavine]

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

14181

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

14180

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

9. Objects / D. Essence of Objects / 13. Nominal Essence

16627

If you remove the accidents from a horse and a lion, the intellect can't tell them apart [Francis of Marchia]