Nuprl Lemma : fpf_dom_compose_lemma

∀f,g,x,eq:Top.  (x ∈ dom(g o f) ~ x ∈ dom(f))


Proof




Definitions occuring in Statement :  fpf-compose: g o f,  fpf-dom: x ∈ dom(f),  top: Top,  all: ∀x:A. B[x],  sqequal: s ~ t
Lemmas :  top_wf
\mforall{}f,g,x,eq:Top.    (x  \mmember{}  dom(g  o  f)  \msim{}  x  \mmember{}  dom(f))



Date html generated: 2015_07_17-AM-11_11_27
Last ObjectModification: 2015_01_28-AM-07_43_04

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