Mathlib Changelog
v4
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Commit
2026-09-07 15:38
26508b67
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chore(Matrix/Block): update forgotten lemma/doc with "new" IsUpperTriangular (
#43263
)
Estimated changes
Modified
Mathlib/LinearAlgebra/Matrix/Block.lean
deleted
theorem
Matrix.matrixOfPolynomials_blockTriangular
added
theorem
Matrix.matrixOfPolynomials_isUpperTriangular