Nuprl Lemma : lt_transitivity_1

∀[i,j,k:ℤ].  (i < k) supposing ((j ≤ k) and i < j)


Proof




Definitions occuring in Statement :  less_than: a < b,  uimplies: b supposing a,  uall: ∀[x:A]. B[x],  le: A ≤ B,  int: ℤ
Definitions unfolded in proof :  uall: ∀[x:A]. B[x],  member: t ∈ T,  uimplies: b supposing a,  le: A ≤ B,  and: P ∧ Q,  guard: {T},  prop: ℙ
Lemmas referenced :  less_than_transitivity1,  le_wf,  member-less_than,  less_than_wf
Rules used in proof :  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  isect_memberFormation,  introduction,  cut,  sqequalHypSubstitution,  productElimination,  thin,  hypothesis,  lemma_by_obid,  isectElimination,  hypothesisEquality,  independent_isectElimination,  sqequalRule,  isect_memberEquality,  because_Cache,  equalityTransitivity,  equalitySymmetry,  intEquality

Latex:
\mforall{}[i,j,k:\mBbbZ{}].    (i  <  k)  supposing  ((j  \mleq{}  k)  and  i  <  j)



Date html generated: 2016_05_13-PM-03_30_43
Last ObjectModification: 2015_12_26-AM-09_46_33

Theory : arithmetic


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