Nuprl Lemma : church-true_wf

[T:Type]. (church-true() ∈ T ⟶ Top ⟶ T)


Proof




Definitions occuring in Statement :  church-true: church-true() uall: [x:A]. B[x] top: Top member: t ∈ T function: x:A ⟶ B[x] universe: Type
Definitions unfolded in proof :  uall: [x:A]. B[x] member: t ∈ T church-true: church-true()
Lemmas referenced :  top_wf
Rules used in proof :  sqequalSubstitution sqequalTransitivity computationStep sqequalReflexivity isect_memberFormation introduction cut sqequalRule lambdaEquality hypothesisEquality lemma_by_obid hypothesis sqequalHypSubstitution axiomEquality equalityTransitivity equalitySymmetry universeEquality

Latex:
\mforall{}[T:Type].  (church-true()  \mmember{}  T  {}\mrightarrow{}  Top  {}\mrightarrow{}  T)



Date html generated: 2016_05_15-PM-03_22_03
Last ObjectModification: 2015_12_27-PM-01_04_40

Theory : general


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