Ideas from 'Philosophy of Arithmetic' by Edmund Husserl [1894], by Theme Structure
[found in 'Philosophy of Arithmetic' by Husserl,Edmund (ed/tr Willard,Dallas) [Kluwer 2003,1402016034]].
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6. Mathematics / A. Nature of Mathematics / 3. Nature of Numbers / l. Zero
9837

0 is not a number, as it answers 'how many?' negatively [Dummett]

6. Mathematics / A. Nature of Mathematics / 4. Using Numbers / a. Units
9576

Multiplicity in general is just one and one and one, etc.

6. Mathematics / A. Nature of Mathematics / 4. Using Numbers / e. Counting by correlation
17444

Husserl said counting is more basic than Frege's oneone correspondence [Heck]

15. Nature of Minds / C. Capacities of Minds / 3. Abstraction by mind
9575

Husserl identifies a positive mental act of unification, and a negative mental act for differences [Frege]

18. Thought / D. Concepts / 4. Structure of Concepts / b. Analysis of concepts
21214

We clarify concepts (e.g. numbers) by determining their psychological origin [VelardeMayol]

18. Thought / E. Abstraction / 8. Abstractionism Critique
9819

Psychologism blunders in focusing on conceptformation instead of delineating the concepts [Dummett]

9851

Husserl wanted to keep a shadowy remnant of abstracted objects, to correlate them [Dummett]
