Nuprl Lemma : glue-term_wf
∀[Gamma:j⊢]. ∀[A:{Gamma ⊢ _}]. ∀[phi:{Gamma ⊢ _:𝔽}]. ∀[T:{Gamma, phi ⊢ _}]. ∀[w:{Gamma, phi ⊢ _:(T ⟶ A)}].
∀[t:{Gamma, phi ⊢ _:T}]. ∀[a:{Gamma ⊢ _:A[phi |⟶ app(w; t)]}].
  (glue [phi ⊢→ t] a ∈ {Gamma ⊢ _:Glue [phi ⊢→ (T;w)] A})
Proof
Definitions occuring in Statement : 
glue-term: glue [phi ⊢→ t] a
, 
glue-type: Glue [phi ⊢→ (T;w)] A
, 
constrained-cubical-term: {Gamma ⊢ _:A[phi |⟶ t]}
, 
context-subset: Gamma, phi
, 
face-type: 𝔽
, 
cubical-app: app(w; u)
, 
cubical-fun: (A ⟶ B)
, 
cubical-term: {X ⊢ _:A}
, 
cubical-type: {X ⊢ _}
, 
cubical_set: CubicalSet
, 
uall: ∀[x:A]. B[x]
, 
member: t ∈ T
Definitions unfolded in proof : 
uall: ∀[x:A]. B[x]
, 
member: t ∈ T
, 
constrained-cubical-term: {Gamma ⊢ _:A[phi |⟶ t]}
, 
subtype_rel: A ⊆r B
, 
glue-term: glue [phi ⊢→ t] a
, 
glue-type: Glue [phi ⊢→ (T;w)] A
, 
all: ∀x:A. B[x]
, 
glue-cube: glue-cube(Gamma;A;phi;T;w;I;rho)
, 
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
, 
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
, 
implies: P 
⇒ Q
, 
bool: 𝔹
, 
unit: Unit
, 
it: ⋅
, 
uiff: uiff(P;Q)
, 
and: P ∧ Q
, 
uimplies: b supposing a
, 
bdd-distributive-lattice: BoundedDistributiveLattice
, 
so_lambda: λ2x.t[x]
, 
prop: ℙ
, 
so_apply: x[s]
, 
exists: ∃x:A. B[x]
, 
or: P ∨ Q
, 
sq_type: SQType(T)
, 
guard: {T}
, 
bnot: ¬bb
, 
assert: ↑b
, 
false: False
, 
not: ¬A
, 
rev_implies: P 
⇐ Q
, 
iff: P 
⇐⇒ Q
, 
context-subset: Gamma, phi
, 
glue-equations: glue-equations(Gamma;A;phi;T;w;I;rho;t;a)
, 
squash: ↓T
, 
true: True
, 
csm-ap: (s)x
, 
subset-iota: iota
, 
cube-set-restriction: f(s)
, 
pi2: snd(t)
, 
cubical-app: app(w; u)
, 
cubical-term-at: u(a)
, 
cubical-term: {X ⊢ _:A}
, 
glue-morph: glue-morph(Gamma;A;phi;T;w;I;rho;J;f;u)
Lemmas referenced : 
constrained-cubical-term_wf, 
cubical-type-cumulativity2, 
cubical_set_cumulativity-i-j, 
cubical-app_wf_fun, 
context-subset_wf, 
thin-context-subset, 
istype-cubical-term, 
cubical-fun_wf, 
cubical-type_wf, 
face-type_wf, 
cubical_set_wf, 
I_cube_wf, 
fset_wf, 
nat_wf, 
cubical_type_at_pair_lemma, 
fl-eq_wf, 
cubical-term-at_wf, 
subtype_rel_self, 
lattice-point_wf, 
face_lattice_wf, 
lattice-1_wf, 
eqtt_to_assert, 
assert-fl-eq, 
subtype_rel_set, 
bounded-lattice-structure_wf, 
lattice-structure_wf, 
lattice-axioms_wf, 
bounded-lattice-structure-subtype, 
bounded-lattice-axioms_wf, 
equal_wf, 
lattice-meet_wf, 
lattice-join_wf, 
eqff_to_assert, 
bool_cases_sqequal, 
subtype_base_sq, 
bool_wf, 
bool_subtype_base, 
assert-bnot, 
iff_weakening_uiff, 
assert_wf, 
I_cube_pair_redex_lemma, 
names-hom_wf, 
cube-set-restriction_wf, 
cube_set_restriction_pair_lemma, 
cubical-type-at_wf, 
squash_wf, 
true_wf, 
face-term-at-restriction-eq-1, 
iff_weakening_equal, 
cube-set-restriction-comp, 
cubical-term-at-morph, 
istype-universe, 
cubical-term-at-comp-is-1, 
csm-ap-type_wf, 
subset-iota_wf2, 
cubical-term-eqcd, 
csm-ap-type-iota, 
subset-cubical-type, 
context-subset-is-subset, 
csm-ap-type-at, 
subtype_rel_wf, 
context-subset-restriction, 
glue-equations_wf, 
cubical_type_ap_morph_pair_lemma, 
equal-glue-cube, 
glue-morph_wf, 
istype-cubical-type-at, 
glue-type_wf, 
cubical-type-ap-morph_wf, 
iff_imp_equal_bool, 
btrue_wf, 
iff_functionality_wrt_iff, 
istype-true, 
cubical-term-at-morph1
Rules used in proof : 
sqequalSubstitution, 
sqequalTransitivity, 
computationStep, 
sqequalReflexivity, 
isect_memberFormation_alt, 
cut, 
sqequalHypSubstitution, 
setElimination, 
thin, 
rename, 
hypothesis, 
universeIsType, 
instantiate, 
introduction, 
extract_by_obid, 
isectElimination, 
hypothesisEquality, 
applyEquality, 
sqequalRule, 
because_Cache, 
functionExtensionality, 
dependent_functionElimination, 
Error :memTop, 
inhabitedIsType, 
lambdaFormation_alt, 
unionElimination, 
equalityElimination, 
equalityTransitivity, 
equalitySymmetry, 
productElimination, 
independent_isectElimination, 
lambdaEquality_alt, 
productEquality, 
cumulativity, 
isectEquality, 
dependent_pairFormation_alt, 
equalityIstype, 
promote_hyp, 
independent_functionElimination, 
voidElimination, 
dependent_set_memberEquality_alt, 
independent_pairEquality, 
setEquality, 
independent_pairFormation, 
setIsType, 
hyp_replacement, 
imageElimination, 
natural_numberEquality, 
imageMemberEquality, 
baseClosed, 
universeEquality, 
applyLambdaEquality, 
functionIsType
Latex:
\mforall{}[Gamma:j\mvdash{}].  \mforall{}[A:\{Gamma  \mvdash{}  \_\}].  \mforall{}[phi:\{Gamma  \mvdash{}  \_:\mBbbF{}\}].  \mforall{}[T:\{Gamma,  phi  \mvdash{}  \_\}].
\mforall{}[w:\{Gamma,  phi  \mvdash{}  \_:(T  {}\mrightarrow{}  A)\}].  \mforall{}[t:\{Gamma,  phi  \mvdash{}  \_:T\}].  \mforall{}[a:\{Gamma  \mvdash{}  \_:A[phi  |{}\mrightarrow{}  app(w;  t)]\}].
    (glue  [phi  \mvdash{}\mrightarrow{}  t]  a  \mmember{}  \{Gamma  \mvdash{}  \_:Glue  [phi  \mvdash{}\mrightarrow{}  (T;w)]  A\})
Date html generated:
2020_05_20-PM-05_43_20
Last ObjectModification:
2020_04_21-PM-07_02_40
Theory : cubical!type!theory
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