Step
*
of Lemma
equiv_rel_and
∀[T:Type]. ∀[E1,E2:T ⟶ T ⟶ ℙ].
(EquivRel(T;x,y.E2[x;y])
⇒ EquivRel(T;x,y.E1[x;y])
⇒ EquivRel(T;x,y.E1[x;y] ∧ E2[x;y]))
BY
{ (Auto THEN All (RepUR ``equiv_rel refl sym trans``) THEN Auto) }
Latex:
Latex:
\mforall{}[T:Type]. \mforall{}[E1,E2:T {}\mrightarrow{} T {}\mrightarrow{} \mBbbP{}].
(EquivRel(T;x,y.E2[x;y]) {}\mRightarrow{} EquivRel(T;x,y.E1[x;y]) {}\mRightarrow{} EquivRel(T;x,y.E1[x;y] \mwedge{} E2[x;y]))
By
Latex:
(Auto THEN All (RepUR ``equiv\_rel refl sym trans``) THEN Auto)
Home
Index