Nuprl Lemma : uall_subtype

[F:Type ⟶ Type]. ∀[A:Type].  ((∀[A:Type]. F[A]) ⊆F[A])


Proof




Definitions occuring in Statement :  subtype_rel: A ⊆B uall: [x:A]. B[x] so_apply: x[s] function: x:A ⟶ B[x] universe: Type
Definitions unfolded in proof :  uall: [x:A]. B[x] member: t ∈ T subtype_rel: A ⊆B so_apply: x[s]
Rules used in proof :  sqequalSubstitution sqequalTransitivity computationStep sqequalReflexivity isect_memberFormation introduction cut sqequalRule axiomEquality hypothesis universeEquality sqequalHypSubstitution isect_memberEquality isectElimination thin hypothesisEquality because_Cache functionEquality lambdaEquality applyEquality equalityTransitivity equalitySymmetry isectEquality cumulativity

Latex:
\mforall{}[F:Type  {}\mrightarrow{}  Type].  \mforall{}[A:Type].    ((\mforall{}[A:Type].  F[A])  \msubseteq{}r  F[A])



Date html generated: 2016_05_13-PM-03_07_08
Last ObjectModification: 2016_01_06-PM-05_28_33

Theory : core_2


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