[Merged by Bors] - feat(LinearAlgebra/AffineSpace/AffineSubspace/Basic): map_inf lemmas
#32015
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Add two lemmas about affine maps applied to the infimum of two
subspaces, similar to lemmas that exist for various other subobject
types.
```lean
lemma map_inf_le (s₁ s₂ : AffineSubspace k P₁) : (s₁ ⊓ s₂).map f ≤ s₁.map f ⊓ s₂.map f :=
```
```lean
lemma map_inf_eq (hf : Function.Injective f) (s₁ s₂ : AffineSubspace k P₁) :
(s₁ ⊓ s₂).map f = s₁.map f ⊓ s₂.map f := by
```
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PR summary f7702fa2d1Import changes for modified filesNo significant changes to the import graph Import changes for all files
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#32015) Add two lemmas about affine maps applied to the infimum of two subspaces, similar to lemmas that exist for various other subobject types. ```lean lemma map_inf_le (s₁ s₂ : AffineSubspace k P₁) : (s₁ ⊓ s₂).map f ≤ s₁.map f ⊓ s₂.map f := ``` ```lean lemma map_inf_eq (hf : Function.Injective f) (s₁ s₂ : AffineSubspace k P₁) : (s₁ ⊓ s₂).map f = s₁.map f ⊓ s₂.map f := by ```
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Add two lemmas about affine maps applied to the infimum of two subspaces, similar to lemmas that exist for various other subobject types.