Combining Texts

Ideas for 'works', 'Basic Problems of Phenomenology' and 'Summa Theologicae'

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

display all the ideas for this combination of texts

---

2 ideas

5. Theory of Logic / B. Logical Consequence / 1. Logical Consequence

23173	If a syllogism admits one absurdity, others must follow [Aquinas]
	Full Idea: In syllogistic arguments, granted one absurdity, others must follow too.
	From: Thomas Aquinas (Summa Theologicae [1265], I-II Q19 6)
	A reaction: This asserts the necessity of logical consequence, which he derives from Aristotle.

5. Theory of Logic / C. Ontology of Logic / 2. Platonism in Logic

15571	The idea of an atemporal realm of validity is as implausible as medieval theology [Heidegger]
	Full Idea: The whole idea of an atemporal realm of validity is an invention that is no less doubtful than medieval speculation about angels.
	From: Martin Heidegger (Basic Problems of Phenomenology [1927], p.215), quoted by Richard Polt - Heidegger: an introduction 2 'Theory'
	A reaction: This seems to be flatly opposed to the view of Frege, and shows why continental philosophy has largely eschewed a study of logic. It is hard for a philosopher to pursue logic extensively without commitment to the Fregean Third Realm.