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: (xL.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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