Nuprl Lemma : cat_arrow_triple_lemma
∀y,x,ob:Top. (cat-arrow(<ob, x, y>) ~ x)
Proof
Definitions occuring in Statement :
cat-arrow: cat-arrow(C)
,
top: Top
,
all: ∀x:A. B[x]
,
pair: <a, b>
,
sqequal: s ~ t
Definitions unfolded in proof :
all: ∀x:A. B[x]
,
member: t ∈ T
,
cat-arrow: cat-arrow(C)
,
pi2: snd(t)
,
pi1: fst(t)
Lemmas referenced :
top_wf
Rules used in proof :
sqequalSubstitution,
sqequalTransitivity,
computationStep,
sqequalReflexivity,
lambdaFormation,
cut,
hypothesis,
introduction,
extract_by_obid,
sqequalRule
Latex:
\mforall{}y,x,ob:Top. (cat-arrow(<ob, x, y>) \msim{} x)
Date html generated:
2017_01_10-AM-08_40_37
Last ObjectModification:
2017_01_09-PM-00_38_27
Theory : small!categories
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