Nuprl Lemma : RankEx4co-ext
RankEx4co() ≡ lbl:Atom × if lbl =a "Foo" then ℤ + RankEx4co() else Void fi
Proof
Definitions occuring in Statement :
RankEx4co: RankEx4co(),
ifthenelse: if b then t else f fi ,
eq_atom: x =a y,
ext-eq: A ≡ B,
product: x:A × B[x],
union: left + right,
int: ℤ,
token: "$token",
atom: Atom,
void: Void
Lemmas :
corec-ext,
eq_atom_wf,
bool_wf,
eqtt_to_assert,
assert_of_eq_atom,
eqff_to_assert,
equal_wf,
bool_cases_sqequal,
subtype_base_sq,
bool_subtype_base,
assert-bnot,
neg_assert_of_eq_atom,
subtype_rel_product,
subtype_rel_sum,
subtype_rel_wf,
strong-continuous-depproduct,
strong-continuous-union,
continuous-constant,
continuous-id,
subtype_rel_weakening,
nat_wf
RankEx4co() \mequiv{} lbl:Atom \mtimes{} if lbl =a "Foo" then \mBbbZ{} + RankEx4co() else Void fi
Date html generated:
2015_07_17-AM-07_50_42
Last ObjectModification:
2015_01_27-AM-09_35_56
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