Nuprl Lemma : cs-possible-state-reachable
[V:Type]. 
[A:Id List]. 
[W:{a:Id| (a 
 A)}  List List]. 
[v:V].
  (
[L:{a:Id| (a 
 A)}  List]
     (<
a.<0, if deq-member(IdDeq;a;L) then 0 : v else 
 fi >, 
a.mk_fpf(A;
b.<0, ff>)>
     
 ts-reachable(consensus-ts5(V;A;W)))) supposing 
     (two-intersection(A;W) and 
     (1 < ||W||))
Proof not projected
Definitions occuring in Statement : 
consensus-ts5: consensus-ts5(V;A;W), 
two-intersection: two-intersection(A;W), 
mk_fpf: mk_fpf(L;f), 
fpf-single: x : v, 
fpf-empty:
, 
id-deq: IdDeq, 
Id: Id, 
length: ||as||, 
ifthenelse: if b then t else f fi , 
bfalse: ff, 
uimplies: b supposing a, 
uall:
[x:A]. B[x], 
member: t 
 T, 
less_than: a < b, 
set: {x:A| B[x]} , 
lambda:
x.A[x], 
pair: <a, b>, 
list: type List, 
natural_number: $n, 
universe: Type, 
l_member: (x 
 l), 
deq-member: deq-member(eq;x;L), 
ts-reachable: ts-reachable(ts)
Definitions : 
uall:
[x:A]. B[x], 
uimplies: b supposing a, 
member: t 
 T, 
ts-reachable: ts-reachable(ts), 
consensus-ts5: consensus-ts5(V;A;W), 
bfalse: ff, 
ts-type: ts-type(ts), 
consensus-state4: ConsensusState, 
consensus-state5: Knowledge(ConsensusState), 
all:
x:A. B[x], 
pi1: fst(t), 
top: Top, 
pi2: snd(t), 
infix_ap: x f y, 
ts-rel: ts-rel(ts), 
ts-init: ts-init(ts), 
prop:
, 
so_lambda: 
x.t[x], 
squash:
T, 
true: True, 
subtype: S 
 T, 
ifthenelse: if b then t else f fi , 
implies: P 
 Q, 
btrue: tt, 
deq-member: deq-member(eq;x;L), 
reduce: reduce(f;k;as), 
eqof: eqof(d), 
and: P 
 Q, 
cand: A c
 B, 
assert:
b, 
guard: {T}, 
bnot: 
b, 
consensus-rel-knowledge: consensus-rel-knowledge(V;A;W;x;y), 
exists:
x:A. B[x], 
consensus-rel-knowledge-step: consensus-rel-knowledge-step(V;A;W;x1;x2;y1;y2;a), 
cs-inning: Inning(s;a), 
bor: p 
q, 
cs-estimate: Estimate(s;a), 
or: P 
 Q, 
consensus-rel-knowledge-archive-step: consensus-rel-knowledge-archive-step(V;A;W;x1;x2;y1;y2;a), 
cs-knowledge: Knowledge(x;a), 
fpf-single: x : v, 
fpf-empty:
, 
fpf-domain: fpf-domain(f), 
exposed-bfalse: exposed-bfalse, 
not:
A, 
cs-knowledge-precondition: may consider v in inning i based on knowledge (s), 
isl: isl(x), 
false: False, 
mk_fpf: mk_fpf(L;f), 
fpf-dom: x 
 dom(f), 
so_apply: x[s], 
iff: P 

 Q, 
bool:
, 
unit: Unit, 
decidable: Dec(P), 
uiff: uiff(P;Q), 
rev_implies: P 
 Q, 
length: ||as||, 
ycomb: Y, 
sq_stable: SqStable(P), 
two-intersection: two-intersection(A;W), 
l_all: (
x
L.P[x]), 
it:
, 
eq_id: a = b
Lemmas : 
l_member_wf, 
ifthenelse_wf, 
deq-member_wf, 
Id_wf, 
id-deq_wf, 
fpf_wf, 
fpf-single_wf, 
fpf-empty_wf, 
mk_fpf_wf, 
top_wf, 
rel_star_wf, 
consensus-rel-knowledge_wf, 
subtype_rel_simple_product, 
two-intersection_wf, 
less_than_wf, 
length_wf, 
rel_star_weakening, 
strong-subtype-deq-subtype, 
strong-subtype-set3, 
strong-subtype-self, 
bool_wf, 
equal_wf, 
assert_wf, 
nil_member, 
bnot_wf, 
not_wf, 
iff_transitivity, 
iff_weakening_uiff, 
eqtt_to_assert, 
assert-deq-member, 
eqff_to_assert, 
assert_of_bnot, 
not_functionality_wrt_iff, 
rel_star_transitivity, 
rel_rel_star, 
decidable__l_member, 
decidable__equal_set, 
decidable__equal_Id, 
bor_wf, 
eq_id_wf, 
btrue_wf, 
or_wf, 
true_wf, 
band_wf, 
false_wf, 
bfalse_wf, 
member_wf, 
assert_of_bor, 
or_functionality_wrt_uiff2, 
assert-eq-id, 
uiff_transitivity, 
assert_functionality_wrt_uiff, 
bnot_thru_bor, 
assert_of_band, 
and_functionality_wrt_uiff2, 
not_functionality_wrt_uiff, 
squash_wf, 
consensus-rel-knowledge-step_wf, 
eqof_wf, 
cs-knowledge_wf, 
consensus-rel-add-knowledge-step_wf, 
consensus-rel-knowledge-inning-step_wf, 
l_member_set2, 
cs-knowledge-precondition_wf, 
fpf-join_wf, 
int-deq_wf, 
all_wf, 
fpf-dom_wf, 
exists_wf, 
cons_member, 
sq_stable__assert, 
fpf-join-empty
\mforall{}[V:Type].  \mforall{}[A:Id  List].  \mforall{}[W:\{a:Id|  (a  \mmember{}  A)\}    List  List].  \mforall{}[v:V].
    (\mforall{}[L:\{a:Id|  (a  \mmember{}  A)\}    List]
          (<\mlambda{}a.ɘ,  if  deq-member(IdDeq;a;L)  then  0  :  v  else  \motimes{}  fi  >,  \mlambda{}a.mk\_fpf(A;\mlambda{}b.ɘ,  ff>)>
          \mmember{}  ts-reachable(consensus-ts5(V;A;W))))  supposing 
          (two-intersection(A;W)  and 
          (1  <  ||W||))
Date html generated:
2012_01_23-PM-12_06_32
Last ObjectModification:
2011_12_19-PM-04_32_37
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