FormalConjecturesForMathlib/Algebra/GradedMonoid.lean
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1 declarations, 0 contain sorry, 0 declared as axioms
Equality in a graded monoid
GradedMonoid.mk_eq_mk proves an equality GradedMonoid.mk i a = GradedMonoid.mk j b from
i = j and HEq a b. It is Sigma.ext stated for GradedMonoid.mk, so that unification only
sees the arguments of GradedMonoid.mk and never has to reduce projections of the two sides.
Imports (1)
Imported by 2 files
- lemma
GradedMonoid.mk_eq_mkEquality of two elements ofGradedMonoid Awritten withGradedMonoid.mkline 35 sourceSource documentation
Equality of two elements of
GradedMonoid Awritten withGradedMonoid.mk.no axioms what this means
Statement uses:
Eq,HEq,GradedMonoid,GradedMonoid.mkProof uses:
Sigma.extlemma mk_eq_mk {i j : ι} {a : A i} {b : A j} (h : i = j) (h' : HEq a b) : GradedMonoid.mk i a = GradedMonoid.mk j b := …