{ 
[Info:Type]. [es:EO+(Info)]. [X:EClass(Top)]. [e:E(X)].
((
null(
(X)(e))) 
(last((X)(e)) = e)) }
{ Proof }
Definitions occuring in Statement :
es-interface-predecessors: (X)(e),
es-E-interface: E(X),
eclass: EClass(A[eo; e]),
event-ordering+: EO+(Info),
null: null(as),
assert: b,
uall: [x:A]. B[x],
top: Top,
not: A,
and: P Q,
universe: Type,
equal: s = t,
last: last(L)
Definitions :
uall: [x:A]. B[x],
top: Top,
and: P Q,
not: A,
assert: b,
null: null(as),
member: t 
T,
cand: A c B,
ifthenelse: if b then t else f fi ,
prop: 
,
implies: P 
Q,
all: x:A. B[x],
subtype: S 
T,
so_lambda: 
x y.t[x; y],
btrue: tt,
bfalse: ff,
true: True,
false: False,
squash: 
T,
rev_implies: P 
Q,
iff: P Q,
band: p 
q,
last: last(L),
select: l[i],
length: ||as||,
ycomb: Y,
le_int: i z j,
bnot: b,
lt_int: i <z j,
es-E-interface: E(X),
bool: 
,
uimplies: b supposing a,
so_apply: x[s1;s2],
unit: Unit,
it: 
Lemmas :
iff_weakening_uiff,
not_wf,
assert_wf,
null_wf3,
es-interface-predecessors_wf,
top_wf,
es-E-interface_wf,
Id_wf,
es-loc_wf,
in-eclass_wf,
es-prior-interface_wf,
es-interface-subtype_rel2,
es-E_wf,
event-ordering+_inc,
event-ordering+_wf,
bool_wf,
eqtt_to_assert,
append_wf,
eclass-val_wf2,
es-E-interface-subtype_rel,
uiff_transitivity,
bnot_wf,
eqff_to_assert,
assert_of_bnot,
false_wf,
not_functionality_wrt_uiff,
assert_functionality_wrt_uiff,
bfalse_wf,
squash_wf,
true_wf,
es-interface-predecessors-step,
eclass_wf,
last_wf,
null_append,
last_append
\mforall{}[Info:Type]. \mforall{}[es:EO+(Info)]. \mforall{}[X:EClass(Top)]. \mforall{}[e:E(X)].
((\mneg{}\muparrow{}null(\mleq{}(X)(e))) \mwedge{} (last(\mleq{}(X)(e)) = e))
Date html generated:
2011_08_16-PM-05_17_58
Last ObjectModification:
2011_06_20-AM-01_19_34
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