Nuprl Lemma : tree-groupoid_wf
∀[X:Type]. (tree-groupoid(X) ∈ Groupoid)
Proof
Definitions occuring in Statement :
tree-groupoid: tree-groupoid(X),
groupoid: Groupoid,
uall: ∀[x:A]. B[x],
member: t ∈ T,
universe: Type
Definitions unfolded in proof :
uall: ∀[x:A]. B[x],
member: t ∈ T,
tree-groupoid: tree-groupoid(X),
so_lambda: so_lambda3,
subtype_rel: A ⊆r B,
so_apply: x[s1;s2;s3],
uimplies: b supposing a,
all: ∀x:A. B[x],
and: P ∧ Q,
cand: A c∧ B,
cat-comp: cat-comp(C),
pi2: snd(t),
tree-cat: tree-cat(X),
mk-cat: mk-cat,
it: ⋅,
cat-id: cat-id(C),
pi1: fst(t)
Lemmas referenced :
mk-groupoid_wf,
tree-cat_wf,
it_wf,
cat-arrow_wf,
cat-ob_wf,
cat-id_wf
Rules used in proof :
sqequalSubstitution,
sqequalTransitivity,
computationStep,
sqequalReflexivity,
isect_memberFormation,
introduction,
cut,
sqequalRule,
extract_by_obid,
sqequalHypSubstitution,
isectElimination,
thin,
cumulativity,
hypothesisEquality,
hypothesis,
lambdaEquality,
applyEquality,
because_Cache,
independent_isectElimination,
lambdaFormation,
independent_pairFormation,
axiomEquality,
equalityTransitivity,
equalitySymmetry,
universeEquality
Latex:
\mforall{}[X:Type]. (tree-groupoid(X) \mmember{} Groupoid)
Date html generated:
2020_05_20-AM-07_55_36
Last ObjectModification:
2017_01_13-AM-11_46_38
Theory : small!categories
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