Nuprl Lemma : dl-kind_wf

[d:dl-Obj()]. (dl-kind(d) ∈ {a:Atom| (a ∈ ``prog prop``)} )


Proof




Definitions occuring in Statement :  dl-kind: dl-kind(d) dl-Obj: dl-Obj() l_member: (x ∈ l) cons: [a b] nil: [] uall: [x:A]. B[x] member: t ∈ T set: {x:A| B[x]}  token: "$token" atom: Atom
Definitions unfolded in proof :  uall: [x:A]. B[x] member: t ∈ T mkinds: mKinds cons: [a b] eager-map: eager-map(f;as) list_ind: list_ind dl-Spec: dl-Spec() pi1: fst(t) nil: [] it: dl-Obj: dl-Obj() dl-kind: dl-kind(d)
Lemmas referenced :  mobj-kind_wf dl-Spec_wf dl-Obj_wf
Rules used in proof :  sqequalSubstitution sqequalTransitivity computationStep sqequalReflexivity isect_memberFormation_alt introduction cut sqequalRule sqequalHypSubstitution extract_by_obid isectElimination thin hypothesis hypothesisEquality axiomEquality equalityTransitivity equalitySymmetry universeIsType

Latex:
\mforall{}[d:dl-Obj()].  (dl-kind(d)  \mmember{}  \{a:Atom|  (a  \mmember{}  ``prog  prop``)\}  )



Date html generated: 2019_10_15-AM-11_39_58
Last ObjectModification: 2019_03_26-AM-11_24_26

Theory : dynamic!logic


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