Combining Texts
Ideas for
'fragments/reports', 'Semantic Necessity' and 'Intro to 'Modality and Tense''
expand these ideas
|
start again
|
choose
another area for these texts
display all the ideas for this combination of texts
3 ideas
5. Theory of Logic / B. Logical Consequence / 5. Modus Ponens
8078
|
Modus ponens is one of five inference rules identified by the Stoics [Chrysippus, by Devlin]
|
5. Theory of Logic / D. Assumptions for Logic / 2. Excluded Middle
6023
|
Every proposition is either true or false [Chrysippus, by Cicero]
|
5. Theory of Logic / E. Structures of Logic / 8. Theories in Logic
14620
|
Theories in logic are sentences closed under consequence, but in truth discussions theories have axioms [Fine,K]
|