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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