Nuprl Lemma : fpf-cap-subtype_functionality
∀[A:Type]. ∀[d1,d2:EqDecider(A)]. ∀[f:a:A fp-> Type]. ∀[x:A]. ∀[z:Type]. (f(x)?z ⊆r f(x)?z)
Proof
Definitions occuring in Statement :
fpf-cap: f(x)?z,
fpf: a:A fp-> B[a],
deq: EqDecider(T),
subtype_rel: A ⊆r B,
uall: ∀[x:A]. B[x],
universe: Type
Lemmas :
subtype_rel-equal,
fpf-cap_wf,
fpf-cap_functionality,
fpf_wf,
deq_wf
\mforall{}[A:Type]. \mforall{}[d1,d2:EqDecider(A)]. \mforall{}[f:a:A fp-> Type]. \mforall{}[x:A]. \mforall{}[z:Type]. (f(x)?z \msubseteq{}r f(x)?z)
Date html generated:
2015_07_17-AM-09_18_01
Last ObjectModification:
2015_01_28-AM-07_50_14
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