Combining Texts

Ideas for 'On What Grounds What', 'Three Dialogues of Hylas and Philonous' and 'Philosophical Studies 1611-19'

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2 ideas

10. Modality / A. Necessity / 10. Impossibility

3946	A thing is shown to be impossible if a contradiction is demonstrated within its definition [Berkeley]
	Full Idea: A thing is shown to be impossible when a repugnancy is demonstrated between the ideas comprehended in its definition.
	From: George Berkeley (Three Dialogues of Hylas and Philonous [1713], II p.214)
	A reaction: The problem is always that imagination is needed to see the 'repugnancy', and that is relative and limited.

10. Modality / E. Possible worlds / 1. Possible Worlds / b. Impossible worlds

13749	Belief in impossible worlds may require dialetheism [Schaffer,J]
	Full Idea: One motivation for dialetheism is the view that there are impossible worlds.
	From: Jonathan Schaffer (On What Grounds What [2009], 2.3)