Nuprl Lemma : bar-delay_wf

[T:Type]. ∀[x:bar-base(T)].  (bar-delay(x) ∈ bar-base(T))


Proof




Definitions occuring in Statement :  bar-delay: bar-delay(b) bar-base: bar-base(T) uall: [x:A]. B[x] member: t ∈ T universe: Type
Definitions unfolded in proof :  uall: [x:A]. B[x] member: t ∈ T bar-delay: bar-delay(b) subtype_rel: A ⊆B
Lemmas referenced :  bar-base_subtype bar-base_wf
Rules used in proof :  sqequalSubstitution sqequalTransitivity computationStep sqequalReflexivity isect_memberFormation introduction cut sqequalRule inrEquality hypothesisEquality applyEquality lemma_by_obid sqequalHypSubstitution isectElimination thin hypothesis axiomEquality equalityTransitivity equalitySymmetry isect_memberEquality because_Cache universeEquality

Latex:
\mforall{}[T:Type].  \mforall{}[x:bar-base(T)].    (bar-delay(x)  \mmember{}  bar-base(T))



Date html generated: 2016_05_14-AM-06_20_05
Last ObjectModification: 2015_12_26-PM-00_01_31

Theory : co-recursion


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