Step
*
1
of Lemma
set_prod_wf
1. s : DSet
2. t : DSet
⊢ IsEqFun(|s| × |t|;λa,b. (a =b b))
BY
{ Eval ``eqfun_p`` 0 }
1
1. s : DSet
2. t : DSet
⊢ ∀[x,y:|s| × |t|]. uiff(↑(x =b y);x = y ∈ (|s| × |t|))
Latex:
Latex:
1. s : DSet
2. t : DSet
\mvdash{} IsEqFun(|s| \mtimes{} |t|;\mlambda{}a,b. (a =\msubb{} b))
By
Latex:
Eval ``eqfun\_p`` 0
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