Stage 35 · Logic & Quantifiers

35.3.1 The Universal Quantifier

35.3 For All and There Exists

Point 1 of 4

Core idea

"All of them, every single one, hold": every x has the property, written with ∀ for a universal statement.

Module goal. Tell apart "everyone does" from "at least one does," and bring in the two quantifiers and their symbolic forms.

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