Combining Texts
Ideas for
'W.V. Quine', 'An Introduction to Modal Logic' and 'Action, Intention and Reason'
expand these ideas
|
start again
|
choose
another area for these texts
display all the ideas for this combination of texts
5 ideas
4. Formal Logic / B. Propositional Logic PL / 1. Propositional Logic
|
8472
|
Sentential logic is consistent (no contradictions) and complete (entirely provable) [Orenstein]
|
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 / 2. Tools of Propositional Logic / e. Axioms of PL
|
8476
|
Axiomatization simply picks from among the true sentences a few to play a special role [Orenstein]
|
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]
|