Nuprl Lemma : assert-cs-is-committed

∀[V:Type]. ∀x:consensus-state3(V). (↑cs-is-committed(x) ⇐⇒ ∃v:V. (x = COMMITED[v] ∈ consensus-state3(V)))


Proof




Definitions occuring in Statement :  cs-is-committed: cs-is-committed(x),  cs-commited: COMMITED[v],  consensus-state3: consensus-state3(T),  assert: ↑b,  uall: ∀[x:A]. B[x],  all: ∀x:A. B[x],  exists: ∃x:A. B[x],  iff: P ⇐⇒ Q,  universe: Type,  equal: s = t ∈ T
Lemmas :  assert_wf,  isl_wf,  bool_wf,  assert_witness,  exists_wf,  equal_wf
\mforall{}[V:Type].  \mforall{}x:consensus-state3(V).  (\muparrow{}cs-is-committed(x)  \mLeftarrow{}{}\mRightarrow{}  \mexists{}v:V.  (x  =  COMMITED[v]))



Date html generated: 2015_07_17-AM-11_23_10
Last ObjectModification: 2015_01_28-AM-07_31_31

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