display all the ideas for this combination of texts
4 ideas
22279 | Frege's sign |--- meant judgements, but the modern |- turnstile means inference, with intecedents [Potter] |
22291 | Deductivism can't explain how the world supports unconditional conclusions [Potter] |
9106 | The word 'every' only signifies when added to a term such as 'man', referring to all men [William of Ockham] |
22295 | Modern logical truths are true under all interpretations of the non-logical words [Potter] |