Combining Texts

All the ideas for 'On the General Idea of Proof Theory', 'Examination of Sir Wm Hamilton's Philosophy' and 'Lectures on Ethics'

expand these ideas     |    start again     |     specify just one area for these texts

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5 ideas

5. Theory of Logic / B. Logical Consequence / 1. Logical Consequence

13827

Logical consequence isn't a black box (Tarski's approach); we should explain how arguments work [Prawitz]

5. Theory of Logic / J. Model Theory in Logic / 1. Logical Models

13826

Model theory looks at valid sentences and consequence, but not how we know these things [Prawitz]

11. Knowledge Aims / C. Knowing Reality / 2. Phenomenalism

3583	External objects are permanent possibilities of sensation [Mill]

15. Nature of Minds / A. Nature of Mind / 4. Other Minds / d. Other minds by analogy

3537	I judge others' feeling by analogy with my body and behaviour [Mill]

25. Social Practice / F. Life Issues / 4. Suicide

19739

The maxim for suicide is committed to the value of life, and is thus contradictory [Kant]