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Theorems · Theorem · logic and foundations

Set.subset_union_of_subset_left

∀ {α : Type u} {s t : Set α}, s ⊆ t → ∀ (u : Set α), s ⊆ t ∪ u
Defined in
Mathlib.Data.Set.Basic
Cited by
2 results in Mathlib
Foundations
Depth 21 from the axioms · uses propext, Quot.sound
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FirstOrder.Field.modelField_of_modelACF · cited by 3Field.modelField_of_model…MeasurableSpace.self_subset_generateMeasurableRec · cited by 2MeasurableSpace.self_subs…Set · cited by 53352SetLE.le.trans · cited by 3151le.transSet.subset_union_left · cited by 142Set.subset_union_leftSet.subset_union_of_subset_le…CITED BYCITES

Cites3

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Cited by2

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