Combining Texts

All the ideas for 'Dthat', 'Preface to Universal Characteristic' and 'Formal and Transcendental Logic'

unexpand these ideas     |    start again     |     specify just one area for these texts

---

5 ideas

1. Philosophy / D. Nature of Philosophy / 2. Invocation to Philosophy

2118	All other human gifts can harm us, but not correct reasoning [Leibniz]
	Full Idea: Although people can be made worse off by all other gifts, correct reasoning alone can only be for the good.
	From: Gottfried Leibniz (Preface to Universal Characteristic [1679])
	A reaction: How about a kind heart? Not everyone would agree with the remark, but philosophers should.

5. Theory of Logic / C. Ontology of Logic / 1. Ontology of Logic

21223	Phenomenology grounds logic in subjective experience [Husserl, by Velarde-Mayol]
	Full Idea: The phenomenological logic grounds logical notions in subjective acts of experience.
	From: report of Edmund Husserl (Formal and Transcendental Logic [1929], p.183) by Victor Velarde-Mayol - On Husserl 4.5.1
	A reaction: I'll approach this with great caution, but this is a line of thought that appeals to me. The core assumptions of logic do not arise ex nihilo.

21222	Logicians presuppose a world, and ignore logic/world connections, so their logic is impure [Husserl, by Velarde-Mayol]
	Full Idea: Husserl maintained that because most logicians have not studied the connection between logic and the world, logic did not achieve its status of purity. Even more, their logic implicitly presupposed a world.
	From: report of Edmund Husserl (Formal and Transcendental Logic [1929]) by Victor Velarde-Mayol - On Husserl 4.5.1
	A reaction: The point here is that the bracketing of phenomenology, to reach an understanding with no presuppositions, is impossible if you don't realise what your are presupposing. I think the logic/world relationship is badly neglected, thanks to Frege.

6. Mathematics / B. Foundations for Mathematics / 1. Foundations for Mathematics

21224	Pure mathematics is the relations between all possible objects, and is thus formal ontology [Husserl, by Velarde-Mayol]
	Full Idea: Pure mathematics is the science of the relations between any object whatever (relation of whole to part, relation of equality, property, unity etc.). In this sense, pure mathematics is seen by Husserl as formal ontology.
	From: report of Edmund Husserl (Formal and Transcendental Logic [1929]) by Victor Velarde-Mayol - On Husserl 4.5.2
	A reaction: I would expect most modern analytic philosophers to agree with this. Modern mathematics (e.g. category theory) seems to have moved beyond this stage, but I still like this idea.

19. Language / B. Reference / 3. Direct Reference / b. Causal reference

14080	Are causal descriptions part of the causal theory of reference, or are they just metasemantic? [Kaplan, by Schaffer,J]
	Full Idea: Kaplan notes that the causal theory of reference can be understood in two quite different ways, as part of the semantics (involving descriptions of causal processes), or as metasemantics, explaining why a term has the referent it does.
	From: report of David Kaplan (Dthat [1970]) by Jonathan Schaffer - Deflationary Metaontology of Thomasson 1
	A reaction: [Kaplan 'Afterthought' 1989] The theory tends to be labelled as 'direct' rather than as 'causal' these days, but causal chains are still at the heart of the story (even if more diffused socially). Nice question. Kaplan takes the meta- version as orthodox.