Nuprl Lemma : op-cat-arrow

∀C:SmallCategory. ∀[A,B:Top].  (cat-arrow(op-cat(C)) A B ~ cat-arrow(C) B A)


Proof




Definitions occuring in Statement :  op-cat: op-cat(C),  cat-arrow: cat-arrow(C),  small-category: SmallCategory,  uall: ∀[x:A]. B[x],  top: Top,  all: ∀x:A. B[x],  apply: f a,  sqequal: s ~ t
Definitions unfolded in proof :  top: Top,  op-cat: op-cat(C),  spreadn: spread4,  small-category: SmallCategory,  member: t ∈ T,  uall: ∀[x:A]. B[x],  all: ∀x:A. B[x]
Lemmas referenced :  small-category_wf,  top_wf,  cat_arrow_triple_lemma
Rules used in proof :  because_Cache,  hypothesisEquality,  isectElimination,  sqequalAxiom,  hypothesis,  voidEquality,  voidElimination,  isect_memberEquality,  dependent_functionElimination,  extract_by_obid,  sqequalRule,  productElimination,  rename,  thin,  setElimination,  sqequalHypSubstitution,  cut,  introduction,  isect_memberFormation,  lambdaFormation,  sqequalReflexivity,  computationStep,  sqequalTransitivity,  sqequalSubstitution

Latex:
\mforall{}C:SmallCategory.  \mforall{}[A,B:Top].    (cat-arrow(op-cat(C))  A  B  \msim{}  cat-arrow(C)  B  A)



Date html generated: 2017_01_11-AM-09_18_25
Last ObjectModification: 2017_01_10-PM-06_44_36

Theory : small!categories


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