Combining Texts

All the ideas for 'Inverted Earth', 'Reference and Reflexivity' and 'works'

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7 ideas

5. Theory of Logic / A. Overview of Logic / 2. History of Logic
11022 Gentzen introduced a natural deduction calculus (NK) in 1934 [Gentzen, by Read]
5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives
11065 The inferential role of a logical constant constitutes its meaning [Gentzen, by Hanna]
11023 The logical connectives are 'defined' by their introduction rules [Gentzen]
11213 Each logical symbol has an 'introduction' rule to define it, and hence an 'elimination' rule [Gentzen]
6. Mathematics / B. Foundations for Mathematics / 4. Axioms for Number / g. Incompleteness of Arithmetic
10067 Gentzen proved the consistency of arithmetic from assumptions beyond arithmetic [Gentzen, by Musgrave]
15. Nature of Minds / B. Features of Minds / 5. Qualia / b. Qualia and intentionality
6172 The Inverted Earth example shows that phenomenal properties are not representational [Block, by Rowlands]
18. Thought / A. Modes of Thought / 9. Indexical Thought
16391 Indexical thoughts are about themselves, and ascribe properties to themselves [Perry, by Recanati]