Combining Philosophers

Ideas for Rescher,N/Oppenheim,P, Ryan Wasserman and Theodore Sider

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13 ideas

10. Modality / A. Necessity / 3. Types of Necessity
13721 'Strong' necessity in all possible worlds; 'weak' necessity in the worlds where the relevant objects exist [Sider]
10. Modality / A. Necessity / 5. Metaphysical Necessity
13707 Maybe metaphysical accessibility is intransitive, if a world in which I am a frog is impossible [Sider]
10. Modality / A. Necessity / 6. Logical Necessity
13709 Logical truths must be necessary if anything is [Sider]
10. Modality / B. Possibility / 8. Conditionals / b. Types of conditional
13716 'If B hadn't shot L someone else would have' if false; 'If B didn't shoot L, someone else did' is true [Sider]
10. Modality / C. Sources of Modality / 1. Sources of Necessity
15030 Humeans say that we decide what is necessary [Sider]
15031 Modal terms in English are entirely contextual, with no modality outside the language [Sider]
10. Modality / C. Sources of Modality / 3. Necessity by Convention
15027 If truths are necessary 'by convention', that seems to make them contingent [Sider]
15028 Conventionalism doesn't seem to apply to examples of the necessary a posteriori [Sider]
10. Modality / C. Sources of Modality / 4. Necessity from Concepts
15033 Humeans says mathematics and logic are necessary because that is how our concept of necessity works [Sider]
10. Modality / C. Sources of Modality / 5. Modality from Actuality
15025 The world does not contain necessity and possibility - merely how things are [Sider]
10. Modality / E. Possible worlds / 3. Transworld Objects / a. Transworld identity
13717 Transworld identity is not a problem in de dicto sentences, which needn't identify an individual [Sider]
10. Modality / E. Possible worlds / 3. Transworld Objects / c. Counterparts
14763 Counterparts rest on similarity, so there are many such relations in different contexts [Sider]
10. Modality / E. Possible worlds / 3. Transworld Objects / e. Possible Objects
13719 Barcan Formula problem: there might have been a ghost, despite nothing existing which could be a ghost [Sider]