Combining Texts

All the ideas for 'fragments/reports', 'On the General Idea of Proof Theory' and 'Actualism and Possible Worlds'

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10 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]

7. Existence / A. Nature of Existence / 3. Being / a. Nature of Being

14664

Necessary beings (numbers, properties, sets, propositions, states of affairs, God) exist in all possible worlds [Plantinga]

9. Objects / D. Essence of Objects / 1. Essences of Objects

14666

Socrates is a contingent being, but his essence is not; without Socrates, his essence is unexemplified [Plantinga]

10. Modality / E. Possible worlds / 1. Possible Worlds / a. Possible worlds

14662

Possible worlds clarify possibility, propositions, properties, sets, counterfacts, time, determinism etc. [Plantinga]

10. Modality / E. Possible worlds / 1. Possible Worlds / d. Possible worlds actualism

16472

Plantinga's actualism is nominal, because he fills actuality with possibilia [Stalnaker on Plantinga]

19. Language / C. Assigning Meanings / 8. Possible Worlds Semantics

16469

Plantinga has domains of sets of essences, variables denoting essences, and predicates as functions [Plantinga, by Stalnaker]

16470

Plantinga's essences have their own properties - so will have essences, giving a hierarchy [Stalnaker on Plantinga]

19. Language / D. Propositions / 1. Propositions

14663

Are propositions and states of affairs two separate things, or only one? I incline to say one [Plantinga]

28. God / C. Attitudes to God / 3. Deism

1558	Clearly the gods ignore human affairs, or they would have given us justice [Thrasymachus]