Nuprl Lemma : free-from-atom_wf

[T:Type]. ∀[x:T]. ∀[a:Atom1].  (a#x:T ∈ ℙ)


Proof




Definitions occuring in Statement :  free-from-atom: a#x:T atom: Atom$n uall: [x:A]. B[x] prop: member: t ∈ T universe: Type
Definitions unfolded in proof :  member: t ∈ T uall: [x:A]. B[x] prop:
Rules used in proof :  universeEquality because_Cache hypothesisEquality thin isectElimination isect_memberEquality atomnEquality equalitySymmetry equalityTransitivity axiomEquality sqequalRule hypothesis sqequalHypSubstitution cut introduction isect_memberFormation sqequalReflexivity computationStep sqequalTransitivity sqequalSubstitution freeFromAtomEquality

Latex:
\mforall{}[T:Type].  \mforall{}[x:T].  \mforall{}[a:Atom1].    (a\#x:T  \mmember{}  \mBbbP{})



Date html generated: 2019_06_20-AM-11_20_19
Last ObjectModification: 2018_10_15-PM-04_55_04

Theory : atom_1


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