Nuprl Lemma : comb_for_le_wf

λi,j,z. (i ≤ j) ∈ ℤ ⟶ ℤ ⟶ (↓True) ⟶ ℙ


Proof




Definitions occuring in Statement :  prop: ℙ,  le: A ≤ B,  squash: ↓T,  true: True,  member: t ∈ T,  lambda: λx.A[x],  function: x:A ⟶ B[x],  int: ℤ
Definitions unfolded in proof :  member: t ∈ T,  uall: ∀[x:A]. B[x],  prop: ℙ
Lemmas referenced :  le_wf,  squash_wf,  true_wf
Rules used in proof :  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  lambdaEquality,  cut,  lemma_by_obid,  sqequalHypSubstitution,  isectElimination,  thin,  hypothesisEquality,  hypothesis,  intEquality

Latex:
\mlambda{}i,j,z.  (i  \mleq{}  j)  \mmember{}  \mBbbZ{}  {}\mrightarrow{}  \mBbbZ{}  {}\mrightarrow{}  (\mdownarrow{}True)  {}\mrightarrow{}  \mBbbP{}



Date html generated: 2016_05_13-PM-04_01_50
Last ObjectModification: 2015_12_26-AM-10_56_57

Theory : int_1


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