Nuprl Lemma : face-one-interval-1
∀[H:j⊢]. ((1(𝕀)=1) = 1(𝔽) ∈ {H ⊢ _:𝔽})
Proof
Definitions occuring in Statement :
face-one: (i=1),
face-1: 1(𝔽),
face-type: 𝔽,
interval-1: 1(𝕀),
cubical-term: {X ⊢ _:A},
cubical_set: CubicalSet,
uall: ∀[x:A]. B[x],
equal: s = t ∈ T
Definitions unfolded in proof :
uall: ∀[x:A]. B[x],
face-1: 1(𝔽),
interval-1: 1(𝕀),
face-one: (i=1),
cubical-term-at: u(a),
member: t ∈ T,
subtype_rel: A ⊆r B,
lattice-point: Point(l),
record-select: r.x,
face_lattice: face_lattice(I),
face-lattice: face-lattice(T;eq),
free-dist-lattice-with-constraints: free-dist-lattice-with-constraints(T;eq;x.Cs[x]),
constrained-antichain-lattice: constrained-antichain-lattice(T;eq;P),
mk-bounded-distributive-lattice: mk-bounded-distributive-lattice,
mk-bounded-lattice: mk-bounded-lattice(T;m;j;z;o),
record-update: r[x := v],
ifthenelse: if b then t else f fi ,
eq_atom: x =a y,
bfalse: ff,
btrue: tt,
cubical-type-at: A(a),
pi1: fst(t),
face-type: 𝔽,
constant-cubical-type: (X),
I_cube: A(I),
functor-ob: ob(F),
face-presheaf: 𝔽,
uimplies: b supposing a
Lemmas referenced :
dM-to-FL-dM1,
subtype_rel_self,
cubical-type-at_wf_face-type,
I_cube_wf,
fset_wf,
nat_wf,
cubical-term-equal,
face-type_wf,
face-one_wf,
interval-1_wf,
cubical_set_wf
Rules used in proof :
sqequalSubstitution,
sqequalTransitivity,
computationStep,
sqequalReflexivity,
isect_memberFormation_alt,
cut,
functionExtensionality,
sqequalRule,
introduction,
extract_by_obid,
sqequalHypSubstitution,
isectElimination,
thin,
hypothesisEquality,
hypothesis,
applyEquality,
Error :memTop,
equalityTransitivity,
equalitySymmetry,
independent_isectElimination,
universeIsType,
instantiate
Latex:
\mforall{}[H:j\mvdash{}]. ((1(\mBbbI{})=1) = 1(\mBbbF{}))
Date html generated:
2020_05_20-PM-02_44_05
Last ObjectModification:
2020_04_04-PM-04_58_13
Theory : cubical!type!theory
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