Nuprl Lemma : sq_stable__partitions

∀I:Interval. ∀p:ℝ List.  (icompact(I) ⇒ SqStable(partitions(I;p)))


Proof




Definitions occuring in Statement :  partitions: partitions(I;p),  icompact: icompact(I),  interval: Interval,  real: ℝ,  list: T List,  sq_stable: SqStable(P),  all: ∀x:A. B[x],  implies: P ⇒ Q
Definitions unfolded in proof :  icompact: icompact(I),  so_apply: x[s],  so_lambda: λ2x.t[x],  bfalse: ff,  cons: [a / b],  squash: ↓T,  less_than: a < b,  so_apply: x[s1;s2],  top: Top,  so_lambda: λ2x y.t[x; y],  it: ⋅,  nil: [],  select: L[n],  btrue: tt,  ifthenelse: if b then t else f fi ,  assert: ↑b,  or: P ∨ Q,  not: ¬A,  false: False,  less_than': less_than'(a;b),  le: A ≤ B,  uimplies: b supposing a,  and: P ∧ Q,  prop: ℙ,  member: t ∈ T,  uall: ∀[x:A]. B[x],  implies: P ⇒ Q,  all: ∀x:A. B[x],  partitions: partitions(I;p)
Lemmas referenced :  interval_wf,  list_wf,  icompact_wf,  sq_stable__rleq,  sq_stable__all,  sq_stable__frs-non-dec,  right-endpoint_wf,  length_of_cons_lemma,  null_cons_lemma,  product_subtype_list,  base_wf,  stuck-spread,  length_of_nil_lemma,  null_nil_lemma,  list-cases,  last_wf,  false_wf,  select_wf,  left-endpoint_wf,  rleq_wf,  real_wf,  length_wf,  less_than_wf,  frs-non-dec_wf,  sq_stable__and
Rules used in proof :  lambdaEquality,  independent_functionElimination,  hypothesis_subsumption,  promote_hyp,  productElimination,  imageElimination,  voidEquality,  voidElimination,  baseClosed,  unionElimination,  dependent_functionElimination,  independent_pairFormation,  because_Cache,  independent_isectElimination,  productEquality,  natural_numberEquality,  functionEquality,  isect_memberEquality,  hypothesis,  hypothesisEquality,  thin,  isectElimination,  sqequalHypSubstitution,  extract_by_obid,  introduction,  cut,  lambdaFormation,  computationStep,  sqequalTransitivity,  sqequalReflexivity,  sqequalRule,  sqequalSubstitution

Latex:
\mforall{}I:Interval.  \mforall{}p:\mBbbR{}  List.    (icompact(I)  {}\mRightarrow{}  SqStable(partitions(I;p)))



Date html generated: 2018_05_22-PM-02_06_15
Last ObjectModification: 2018_05_21-AM-00_18_39

Theory : reals


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