Nuprl Lemma : m-boundary_wf
∀[X,A:Type].  ∀[d:metric(X)]. (m-boundary(X;d;A) ∈ Type) supposing strong-subtype(A;X)
Proof
Definitions occuring in Statement : 
m-boundary: m-boundary(X;d;A)
, 
metric: metric(X)
, 
strong-subtype: strong-subtype(A;B)
, 
uimplies: b supposing a
, 
uall: ∀[x:A]. B[x]
, 
member: t ∈ T
, 
universe: Type
Definitions unfolded in proof : 
uall: ∀[x:A]. B[x]
, 
member: t ∈ T
, 
uimplies: b supposing a
, 
m-boundary: m-boundary(X;d;A)
, 
prop: ℙ
Latex:
\mforall{}[X,A:Type].    \mforall{}[d:metric(X)].  (m-boundary(X;d;A)  \mmember{}  Type)  supposing  strong-subtype(A;X)
Date html generated:
2020_05_20-AM-11_44_52
Last ObjectModification:
2019_11_07-AM-10_18_01
Theory : reals
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