Combining Texts

All the ideas for 'The Human Body is a sort of Machine', 'An Introduction to Modal Logic' and 'Comments on a Certain Broadsheet'

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8 ideas

4. Formal Logic / B. Propositional Logic PL / 2. Tools of Propositional Logic / b. Terminology of PL
9540 A 'value-assignment' (V) is when to each variable in the set V assigns either the value 1 or the value 0 [Hughes/Cresswell]
4. Formal Logic / B. Propositional Logic PL / 2. Tools of Propositional Logic / d. Basic theorems of PL
9541 The Law of Transposition says (P→Q) → (¬Q→¬P) [Hughes/Cresswell]
4. Formal Logic / B. Propositional Logic PL / 4. Soundness of PL
9543 The rules preserve validity from the axioms, so no thesis negates any other thesis [Hughes/Cresswell]
5. Theory of Logic / K. Features of Logics / 4. Completeness
9544 A system is 'weakly' complete if all wffs are derivable, and 'strongly' if theses are maximised [Hughes/Cresswell]
12. Knowledge Sources / A. A Priori Knowledge / 4. A Priori as Necessities
2602 What experience could prove 'If a=c and b=c then a=b'? [Descartes]
18. Thought / D. Concepts / 2. Origin of Concepts / c. Nativist concepts
2600 The mind's innate ideas are part of its capacity for thought [Descartes]
2601 Qualia must be innate, because physical motions do not contain them [Descartes]
26. Natural Theory / A. Speculations on Nature / 2. Natural Purpose / b. Limited purposes
19376 A machine is best defined by its final cause, which explains the roles of the parts [Leibniz]