Combining Texts

Ideas for 'The Scope and Language of Science', 'Introduction to Mathematical Philosophy' and 'Letters to Thomas Burnett'

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3 ideas

8. Modes of Existence / A. Relations / 4. Formal Relations / a. Types of relation

14430

If a relation is symmetrical and transitive, it has to be reflexive [Russell]

14432

'Asymmetry' is incompatible with its converse; a is husband of b, so b can't be husband of a [Russell]

8. Modes of Existence / B. Properties / 1. Nature of Properties

8461	The category of objects incorporates the old distinction of substances and their modes [Quine]