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1 topic
Project-declaredLean 4.32.1

Restrict insert kpair eq restrict of not mem

LO.FirstOrder.SetTheory.restrict_insert_kpair_eq_restrict_of_not_mem

Plain-language statement

Restricting an inserted relation to a set that does not contain the inserted first coordinate recovers the original restriction.

formal logicmetatheoryproof theory

Source project: Foundation

Person-level attribution pending.

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