Nuprl Lemma : aa_data_wrapleaf-val_wf
[T:Type]. [x:aa_data_wrapper(T)]. aa_data_wrapleaf-val(x) 
T supposing 
aa_data_wrapleaf?(x)
Proof
Definitions occuring in Statement :
aa_data_wrapleaf-val: aa_data_wrapleaf-val(x),
aa_data_wrapleaf?: aa_data_wrapleaf?(x),
aa_data_wrapper: aa_data_wrapper(T),
assert: b,
uimplies: b supposing a,
uall: [x:A]. B[x],
member: t T,
universe: Type
Definitions :
uall: [x:A]. B[x],
uimplies: b supposing a,
assert: b,
aa_data_wrapleaf?: aa_data_wrapleaf?(x),
member: t T,
aa_data_wrapleaf-val: aa_data_wrapleaf-val(x),
implies: P 
Q,
bfalse: ff,
btrue: tt,
ifthenelse: if b then t else f fi ,
aa_data_wrapper: aa_data_wrapper(T),
false: False,
aa_data_wrapnode: aa_data_wrapnode(nd),
prop: 
,
aa_data_wrapleaf: aa_data_wrapleaf(val),
guard: {T}
Lemmas :
false_wf,
true_wf,
assert_wf,
aa_data_wrapleaf?_wf,
aa_data_wrapper_wf,
subtype_rel_self
\mforall{}[T:Type]. \mforall{}[x:aa\_data\_wrapper(T)]. aa\_data\_wrapleaf-val(x) \mmember{} T supposing \muparrow{}aa\_data\_wrapleaf?(x)
Date html generated:
2013_03_20-AM-11_02_52
Last ObjectModification:
2012_11_27-AM-10_33_27
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