Combining Texts

Ideas for 'fragments/reports', 'Introduction to Mathematical Philosophy' and 'Abstract Objects'

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7 ideas

7. Existence / A. Nature of Existence / 1. Nature of Existence

14463

Existence can only be asserted of something described, not of something named [Russell]

7. Existence / C. Structure of Existence / 7. Abstract/Concrete / a. Abstract/concrete

10512

The abstract/concrete distinction is based on what is perceivable, causal and located [Hale]

10517

Colours and points seem to be both concrete and abstract [Hale]

10519

The abstract/concrete distinction is in the relations in the identity-criteria of object-names [Hale]

10520

Token-letters and token-words are concrete objects, type-letters and type-words abstract [Hale]

7. Existence / C. Structure of Existence / 7. Abstract/Concrete / b. Levels of abstraction

10524

There is a hierarchy of abstraction, based on steps taken by equivalence relations [Hale]

7. Existence / D. Theories of Reality / 7. Fictionalism

14429

Classes are logical fictions, made from defining characteristics [Russell]