Ideas of Edmund Husserl, by Theme

[German, 1859 - 1938, Born at Prossnitz. Pupil of Brentano. Professor at the University of Freiburg.]

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1. Philosophy / H. Continental Philosophy / 2. Phenomenology
If phenomenology is deprived of the synthetic a priori, it is reduced to literature
Phenomenology is the science of essences - necessary universal structures for art, representation etc.
Bracketing subtracts entailments about external reality from beliefs
Phenomenology aims to describe experience directly, rather than by its origins or causes
Phenomenology needs absolute reflection, without presuppositions
5. Theory of Logic / C. Ontology of Logic / 1. Ontology of Logic
Logicians presuppose a world, and ignore logic/world connections, so their logic is impure
Phenomenology grounds logic in subjective experience
6. Mathematics / A. Nature of Mathematics / 3. Numbers / l. Zero
0 is not a number, as it answers 'how many?' negatively
6. Mathematics / A. Nature of Mathematics / 3. Numbers / o. Units
Multiplicity in general is just one and one and one, etc.
6. Mathematics / A. Nature of Mathematics / 3. Numbers / p. Counting
Husserl said counting is more basic than Frege's one-one correspondence
6. Mathematics / B. Foundations for Mathematics / 1. Foundations for Mathematics
Pure mathematics is the relations between all possible objects, and is thus formal ontology
7. Existence / C. Structure of Existence / 6. Fundamentals / c. Monads
Husserl sees the ego as a monad, unifying presence, sense and intentional acts
9. Objects / D. Essence of Objects / 5. Essence as Kind
The sense of anything contingent has a purely apprehensible essence or Eidos
11. Knowledge Aims / B. Certain Knowledge / 5. The Cogito
The physical given, unlike the mental given, could be non-existing
12. Knowledge Sources / A. A Priori Knowledge / 2. Self-Evidence
Husserl says we have intellectual intuitions (of categories), as well as of the senses
12. Knowledge Sources / E. Direct Knowledge / 1. Intuition
Direct 'seeing' by consciousness is the ultimate rational legitimation
15. Nature of Minds / A. Nature of Mind / 4. Other Minds / c. Knowing other minds
Husserl's monads (egos) communicate, through acts of empathy.
15. Nature of Minds / C. Capacities of Minds / 3. Abstraction by mind
Husserl identifies a positive mental act of unification, and a negative mental act for differences
16. Persons / B. Nature of the Self / 4. Presupposition of Self
The psychological ego is worldly, and the pure ego follow transcendental reduction
18. Thought / D. Concepts / 4. Structure of Concepts / b. Analysis of concepts
We clarify concepts (e.g. numbers) by determining their psychological origin
18. Thought / E. Abstraction / 8. Abstractionism Critique
Psychologism blunders in focusing on concept-formation instead of delineating the concepts
Husserl wanted to keep a shadowy remnant of abstracted objects, to correlate them