Nuprl Lemma : transitive-closure_wf

∀[A:Type]. ∀[R:A ⟶ A ⟶ ℙ].  (TC(R) ∈ A ⟶ A ⟶ ℙ)


Proof




Definitions occuring in Statement :  transitive-closure: TC(R),  uall: ∀[x:A]. B[x],  prop: ℙ,  member: t ∈ T,  function: x:A ⟶ B[x],  universe: Type
Definitions unfolded in proof :  uall: ∀[x:A]. B[x],  member: t ∈ T,  transitive-closure: TC(R),  subtype_rel: A ⊆r B,  prop: ℙ,  so_lambda: λ2x.t[x],  and: P ∧ Q,  so_apply: x[s]
Lemmas referenced :  set_wf,  list_wf,  and_wf,  rel_path_wf,  less_than_wf,  length_wf
Rules used in proof :  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  isect_memberFormation,  introduction,  cut,  sqequalRule,  lambdaEquality,  lemma_by_obid,  sqequalHypSubstitution,  isectElimination,  thin,  productEquality,  hypothesisEquality,  applyEquality,  hypothesis,  universeEquality,  natural_numberEquality,  because_Cache,  axiomEquality,  equalityTransitivity,  equalitySymmetry,  functionEquality,  cumulativity,  isect_memberEquality

Latex:
\mforall{}[A:Type].  \mforall{}[R:A  {}\mrightarrow{}  A  {}\mrightarrow{}  \mBbbP{}].    (TC(R)  \mmember{}  A  {}\mrightarrow{}  A  {}\mrightarrow{}  \mBbbP{})



Date html generated: 2016_05_14-PM-03_51_07
Last ObjectModification: 2015_12_26-PM-06_58_33

Theory : relations2


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