Step
*
1
of Lemma
free-dl-0-not-1
1. T : Type
2. eq : EqDecider(T)
3. {} = {{}} ∈ fset(fset(T))
⊢ False
BY
{ ((Assert {} ∈ {{}} BY Auto) THEN RevHypSubst' (-2) (-1) THEN Reduce -1 THEN Auto) }
Latex:
Latex:
1. T : Type
2. eq : EqDecider(T)
3. \{\} = \{\{\}\}
\mvdash{} False
By
Latex:
((Assert \{\} \mmember{} \{\{\}\} BY Auto) THEN RevHypSubst' (-2) (-1) THEN Reduce -1 THEN Auto)
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