Combining Texts

Ideas for 'works', 'A Dictionary of Philosophy' and 'What are Sets and What are they For?'

unexpand these ideas     |    start again     |     choose another area for these texts

display all the ideas for this combination of texts

---

1 idea

5. Theory of Logic / I. Semantics of Logic / 3. Logical Truth

14245	Logical truths are true no matter what exists - but predicate calculus insists that something exists [Oliver/Smiley]
	Full Idea: Logical truths should be true no matter what exists, so true even if nothing exists. The classical predicate calculus, however, makes it logically true that something exists.
	From: Oliver,A/Smiley,T (What are Sets and What are they For? [2006], 5.1)