Combining Texts

All the ideas for 'Phenomenalism', 'Completeness of Axioms of Logic' and 'The Wanderer and his Shadow'

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

---

4 ideas

4. Formal Logic / C. Predicate Calculus PC / 3. Completeness of PC

17751	Gödel proved the completeness of first order predicate logic in 1930 [Gödel, by Walicki]
	Full Idea: Gödel proved the completeness of first order predicate logic in his doctoral dissertation of 1930.
	From: report of Kurt Gödel (Completeness of Axioms of Logic [1930]) by Michal Walicki - Introduction to Mathematical Logic History E.2.2

11. Knowledge Aims / C. Knowing Reality / 2. Phenomenalism

2614	Modern phenomenalism holds that objects are logical constructions out of sense-data [Ayer]
	Full Idea: Nowadays phenomenalism is held to be a theory of perception which says that physical objects are logical constructions out of sense-data.
	From: A.J. Ayer (Phenomenalism [1947], §1)

12. Knowledge Sources / B. Perception / 4. Sense Data / a. Sense-data theory

2615	The concept of sense-data allows us to discuss appearances without worrying about reality [Ayer]
	Full Idea: The introduction of the term 'sense-datum' is a means of referring to appearances without prejudging the question of what it is, if anything, that they are appearances of.
	From: A.J. Ayer (Phenomenalism [1947], §1)

26. Natural Theory / A. Speculations on Nature / 2. Natural Purpose / b. Limited purposes

4422	The end need not be the goal, as in the playing of a melody (and yet it must be completed) [Nietzsche]
	Full Idea: Not every end is the goal; the end of a melody is not its goal; and yet: as long as the melody has not reached its end, it also hasn't reached its goal. A parable.
	From: Friedrich Nietzsche (The Wanderer and his Shadow [1880], §204)
	A reaction: A nice message for Aristotle, that there is no simple separation of ends and means.