Nuprl Lemma : sys-antecedent-retraction
∀[Info:Type]. ∀es:EO+(Info). ∀Sys:EClass(Top). ∀f:sys-antecedent(es;Sys). retraction(E(Sys);f)
Proof
Definitions occuring in Statement :
sys-antecedent: sys-antecedent(es;Sys),
es-E-interface: E(X),
eclass: EClass(A[eo; e]),
event-ordering+: EO+(Info),
uall: ∀[x:A]. B[x],
top: Top,
all: ∀x:A. B[x],
universe: Type,
retraction: retraction(T;f)
Lemmas :
sq_stable__es-causle,
event-ordering+_subtype,
es-E-interface_wf,
es-causle-interface-retraction
Latex:
\mforall{}[Info:Type]. \mforall{}es:EO+(Info). \mforall{}Sys:EClass(Top). \mforall{}f:sys-antecedent(es;Sys). retraction(E(Sys);f)
Date html generated:
2015_07_21-PM-04_16_22
Last ObjectModification:
2015_01_27-PM-05_20_56
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