display all the ideas for this combination of philosophers
3 ideas
9027 | A sentence is logically true if all sentences with that grammatical structure are true [Quine] |
9721 | A logical truth or tautology is a logical consequence of the empty set [Enderton] |
9994 | A truth assignment to the components of a wff 'satisfy' it if the wff is then True [Enderton] |