Combining Texts

All the ideas for 'Through the Looking Glass', 'How to Define Theoretical Terms' and 'Conditionals and Possibilia'

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8 ideas

2. Reason / D. Definition / 2. Aims of Definition
15527 Defining terms either enables elimination, or shows that they don't require elimination [Lewis]
7. Existence / A. Nature of Existence / 3. Being / e. Being and nothing
21982 I only wish I had such eyes as to see Nobody! It's as much as I can do to see real people. [Carroll,L]
10. Modality / B. Possibility / 8. Conditionals / c. Truth-function conditionals
13858 The truth-functional account of conditionals is right, if the antecedent is really acceptable [Jackson, by Edgington]
10. Modality / E. Possible worlds / 3. Transworld Objects / b. Rigid designation
15530 A logically determinate name names the same thing in every possible world [Lewis]
14. Science / B. Scientific Theories / 8. Ramsey Sentences
15531 The Ramsey sentence of a theory says that it has at least one realisation [Lewis]
15528 A Ramsey sentence just asserts that a theory can be realised, without saying by what [Lewis]
15526 There is a method for defining new scientific terms just using the terms we already understand [Lewis]
15529 It is better to have one realisation of a theory than many - but it may not always be possible [Lewis]