Commit 2024-12-09 09:39 a2702bb7

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feat(TensorProduct): change of base ring in tensor product of algebras (#19670) A follow up to #18744, adding more contents about tensor product of algebras. In LinearAlgebra/TensorProduct/Basic.lean: change the argument order of mapOfCompatibleSMul from R M N A to the more natural R A M N; add lidOfCompatibleSMul. In RingTheory/TensorProduct/Basic.lean: add a CompatibleSMul section for algebras completely analogous to the CompatibleSMul section in LinearAlgebra/TensorProduct/Basic.lean added in #18744. In RingTheory/Localization/BaseChange.lean: promote various examples to defs, and generalize tensorSelfEquiv to algebraLid.

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