Nuprl Lemma : vr_notPEXT
vr_PEXT
Proof not projected
Definitions occuring in Statement :
vr_PEXT: vr_PEXT,
not: A
Definitions :
CollapseTHENA: Error :CollapseTHENA,
D: Error :D,
equal: s = t,
bool: 
,
btrue: tt,
bfalse: ff,
Auto: Error :Auto,
CollapseTHEN: Error :CollapseTHEN,
and: P 
Q,
uiff: uiff(P;Q),
isect: 
x:A. B[x],
uall: 
[x:A]. B[x],
function: x:A 
B[x],
all: x:A. B[x],
subtype_rel: A 
r B,
vr_PEXT: vr_PEXT,
member: t 
T,
false: False,
implies: P 
Q,
not: A,
universe: Type,
prop: 
,
product: x:A 
B[x],
uimplies: b supposing a,
less_than: a < b,
ge: i 
j ,
le: A 
B,
strong-subtype: strong-subtype(A;B),
fpf: a:A fp-> B[a],
pair: <a, b>,
eclass: EClass(A[eo; e]),
void: Void
Lemmas :
btrue_neq_bfalse,
false_wf,
vr_PEXT_implies_t_eq_f,
bfalse_wf,
btrue_wf,
bool_wf,
vr_PEXT_wf,
not_wf
\mneg{}vr\_PEXT
Date html generated:
2012_02_20-PM-03_34_29
Last ObjectModification:
2012_02_02-PM-01_55_34
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