Nuprl Lemma : comp-fun-to-comp-op-inverse
∀[Gamma:j⊢]. ∀[A:{Gamma ⊢ _}]. ∀[cA:Gamma ⊢ Compositon(A)].
  (cop-to-cfun(cfun-to-cop(Gamma;A;cA)) = cA ∈ Gamma ⊢ Compositon(A))
Proof
Definitions occuring in Statement : 
comp-fun-to-comp-op: cfun-to-cop(Gamma;A;comp)
, 
comp-op-to-comp-fun: cop-to-cfun(cA)
, 
composition-structure: Gamma ⊢ Compositon(A)
, 
cubical-type: {X ⊢ _}
, 
cubical_set: CubicalSet
, 
uall: ∀[x:A]. B[x]
, 
equal: s = t ∈ T
Definitions unfolded in proof : 
uall: ∀[x:A]. B[x]
, 
composition-structure: Gamma ⊢ Compositon(A)
, 
composition-function: composition-function{j:l,i:l}(Gamma;A)
, 
constrained-cubical-term: {Gamma ⊢ _:A[phi |⟶ t]}
, 
member: t ∈ T
, 
subtype_rel: A ⊆r B
, 
uimplies: b supposing a
, 
cubical-type: {X ⊢ _}
, 
csm-ap-type: (AF)s
, 
interval-1: 1(𝕀)
, 
csm-id-adjoin: [u]
, 
csm-id: 1(X)
, 
csm-adjoin: (s;u)
, 
csm-ap: (s)x
, 
prop: ℙ
, 
comp-fun-to-comp-op: cfun-to-cop(Gamma;A;comp)
, 
comp-op-to-comp-fun: cop-to-cfun(cA)
, 
comp-fun-to-comp-op1: comp-fun-to-comp-op1(Gamma;A;comp)
, 
csm-composition: (comp)sigma
, 
composition-term: comp cA [phi ⊢→ u] a0
, 
uniform-comp-function: uniform-comp-function{j:l, i:l}(Gamma; A; comp)
, 
all: ∀x:A. B[x]
, 
names-hom: I ⟶ J
, 
formal-cube: formal-cube(I)
, 
pi1: fst(t)
, 
functor-ob: ob(F)
, 
I_cube: A(I)
, 
true: True
, 
squash: ↓T
, 
implies: P 
⇒ Q
, 
cubical-term-at: u(a)
, 
csm+: tau+
, 
csm-comp: G o F
, 
cube-context-adjoin: X.A
, 
cube-set-restriction: f(s)
, 
pi2: snd(t)
, 
constant-cubical-type: (X)
, 
cc-fst: p
, 
cc-snd: q
, 
compose: f o g
, 
interval-type: 𝕀
, 
cc-adjoin-cube: (v;u)
, 
functor-arrow: arrow(F)
, 
cube+: cube+(I;i)
, 
context-map: <rho>
, 
rev_implies: P 
⇐ Q
, 
iff: P 
⇐⇒ Q
, 
false: False
, 
assert: ↑b
, 
bnot: ¬bb
, 
sq_type: SQType(T)
, 
or: P ∨ Q
, 
exists: ∃x:A. B[x]
, 
uiff: uiff(P;Q)
, 
so_apply: x[s]
, 
guard: {T}
, 
and: P ∧ Q
, 
so_lambda: λ2x.t[x]
, 
DeMorgan-algebra: DeMorganAlgebra
, 
mk-bounded-lattice: mk-bounded-lattice(T;m;j;z;o)
, 
mk-bounded-distributive-lattice: mk-bounded-distributive-lattice, 
free-dist-lattice: free-dist-lattice(T; eq)
, 
free-DeMorgan-lattice: free-DeMorgan-lattice(T;eq)
, 
bfalse: ff
, 
eq_atom: x =a y
, 
record-update: r[x := v]
, 
mk-DeMorgan-algebra: mk-DeMorgan-algebra(L;n)
, 
free-DeMorgan-algebra: free-DeMorgan-algebra(T;eq)
, 
dM: dM(I)
, 
record-select: r.x
, 
lattice-point: Point(l)
, 
interval-presheaf: 𝕀
, 
cubical-type-at: A(a)
, 
ifthenelse: if b then t else f fi 
, 
btrue: tt
, 
it: ⋅
, 
unit: Unit
, 
bool: 𝔹
, 
nat: ℕ
, 
names: names(I)
, 
nc-s: s
, 
dM-lift: dM-lift(I;J;f)
, 
dma-lift-compose: dma-lift-compose(I;J;eqi;eqj;f;g)
, 
nh-comp: g ⋅ f
, 
top: Top
, 
satisfiable_int_formula: satisfiable_int_formula(fmla)
, 
decidable: Dec(P)
, 
ge: i ≥ j 
, 
not: ¬A
, 
nequal: a ≠ b ∈ T 
, 
csm-ap-term: (t)s
, 
lattice-hom: Hom(l1;l2)
, 
bounded-lattice-hom: Hom(l1;l2)
, 
bdd-distributive-lattice: BoundedDistributiveLattice
, 
constrained-antichain-lattice: constrained-antichain-lattice(T;eq;P)
, 
free-dist-lattice-with-constraints: free-dist-lattice-with-constraints(T;eq;x.Cs[x])
, 
face-lattice: face-lattice(T;eq)
, 
face_lattice: face_lattice(I)
, 
face-presheaf: 𝔽
, 
face-type: 𝔽
, 
subset-iota: iota
, 
context-subset: Gamma, phi
, 
interval-0: 0(𝕀)
, 
canonical-section: canonical-section(Gamma;A;I;rho;a)
, 
nc-0: (i0)
, 
nat-trans: nat-trans(C;D;F;G)
, 
psc_map: A ⟶ B
, 
cube_set_map: A ⟶ B
, 
type-cat: TypeCat
, 
cat-arrow: cat-arrow(C)
Lemmas referenced : 
istype-cubical-term, 
context-subset_wf, 
csm-ap-type_wf, 
cube-context-adjoin_wf, 
interval-type_wf, 
csm-id-adjoin_wf-interval-1, 
csm-context-subset-subtype2, 
csm-ap-term_wf, 
csm-context-subset-subtype3, 
subset-cubical-term2, 
sub_cubical_set_self, 
thin-context-subset-adjoin, 
csm-id-adjoin_wf, 
interval-1_wf, 
subset-cubical-term, 
context-subset-is-subset, 
interval-0_wf, 
csm-id-adjoin_wf-interval-0, 
constrained-cubical-term-eqcd, 
cubical-term-eqcd, 
face-type_wf, 
cube_set_map_wf, 
cubical_set_wf, 
uniform-comp-function_wf, 
composition-structure_wf, 
cubical-type_wf, 
I_cube_wf, 
fset_wf, 
nat_wf, 
cubical-term-equal, 
formal-cube_wf1, 
context-map_wf, 
nh-id_wf, 
cubical-term-at_wf, 
cubical_set_cumulativity-i-j, 
csm-ap_wf, 
cubical-type-at_wf, 
csm-ap-type-at, 
cube-set-restriction-id, 
csm-ap-context-map, 
equal_wf, 
squash_wf, 
true_wf, 
istype-universe, 
csm-ap-term-at, 
subtype_rel-equal, 
cubical-type-cumulativity2, 
csm-comp_wf, 
csm+_wf_interval, 
csm-equal, 
I_cube_pair_redex_lemma, 
iff_weakening_equal, 
names_wf, 
not-added-name, 
neg_assert_of_eq_int, 
assert-bnot, 
bool_subtype_base, 
bool_wf, 
subtype_base_sq, 
bool_cases_sqequal, 
eqff_to_assert, 
DeMorgan-algebra-axioms_wf, 
lattice-join_wf, 
lattice-meet_wf, 
bounded-lattice-axioms_wf, 
bounded-lattice-structure_wf, 
subtype_rel_transitivity, 
DeMorgan-algebra-structure-subtype, 
bounded-lattice-structure-subtype, 
lattice-axioms_wf, 
lattice-structure_wf, 
DeMorgan-algebra-structure_wf, 
subtype_rel_set, 
dM_wf, 
lattice-point_wf, 
subtype_rel_self, 
eq_int_wf, 
new-name_wf, 
add-name_wf, 
csm-ap-restriction, 
interval-type-at, 
cube-set-restriction_wf, 
strong-subtype-self, 
istype-int, 
le_wf, 
strong-subtype-set3, 
strong-subtype-deq-subtype, 
int-deq_wf, 
fset-member_wf, 
trivial-member-add-name1, 
dM_inc_wf, 
f-subset-add-name, 
nc-s_wf, 
istype-cubical-type-at, 
cube_set_restriction_pair_lemma, 
cube-set-restriction-comp, 
assert_of_eq_int, 
eqtt_to_assert, 
names-subtype, 
dM-lift-inc, 
not_wf, 
set_wf, 
int_formula_prop_wf, 
int_formula_prop_eq_lemma, 
int_term_value_var_lemma, 
int_term_value_constant_lemma, 
int_formula_prop_le_lemma, 
int_formula_prop_not_lemma, 
int_formula_prop_and_lemma, 
intformeq_wf, 
itermVar_wf, 
itermConstant_wf, 
intformle_wf, 
intformnot_wf, 
intformand_wf, 
full-omega-unsat, 
decidable__le, 
nat_properties, 
deq_wf, 
interval-type-ap-morph, 
not_assert_elim, 
btrue_wf, 
btrue_neq_bfalse, 
bfalse_wf, 
eq_int_eq_true, 
bnot_wf, 
assert_elim, 
csm-face-type, 
canonical-section-at, 
face-type-ap-morph, 
face-type-at, 
fl-morph_wf, 
face_lattice_wf, 
cubical-term-at-morph, 
context-subset-map, 
csm-ap-comp-type-sq, 
arrow_pair_lemma, 
names-hom_wf, 
int_subtype_base, 
new-name-property, 
csm-ap-csm-comp, 
cubical_type_at_pair_lemma, 
cubical-term_wf, 
cubical-type-cumulativity, 
s-comp-nc-0-new, 
nh-comp_wf, 
cube-set-restriction-when-id, 
nc-0_wf, 
dM0_wf, 
dM0-sq-empty, 
cc-adjoin-cube_wf, 
cubical-type-ap-morph_wf, 
csm-cubical-type-ap-morph, 
context-subset-term-subtype, 
constrained-cubical-term_wf, 
dM1_wf
Rules used in proof : 
sqequalSubstitution, 
sqequalTransitivity, 
computationStep, 
sqequalReflexivity, 
isect_memberFormation_alt, 
equalitySymmetry, 
sqequalHypSubstitution, 
setElimination, 
thin, 
rename, 
cut, 
dependent_set_memberEquality_alt, 
functionExtensionality, 
equalityIstype, 
introduction, 
extract_by_obid, 
isectElimination, 
hypothesisEquality, 
hypothesis, 
instantiate, 
applyEquality, 
sqequalRule, 
because_Cache, 
independent_isectElimination, 
productElimination, 
equalityTransitivity, 
universeIsType, 
lambdaEquality_alt, 
inhabitedIsType, 
dependent_functionElimination, 
applyLambdaEquality, 
hyp_replacement, 
natural_numberEquality, 
baseClosed, 
imageMemberEquality, 
imageElimination, 
Error :memTop, 
universeEquality, 
independent_functionElimination, 
lambdaFormation_alt, 
voidElimination, 
promote_hyp, 
dependent_pairFormation_alt, 
isectEquality, 
cumulativity, 
productEquality, 
equalityElimination, 
unionElimination, 
dependent_pairEquality_alt, 
intEquality, 
lambdaEquality, 
lambdaFormation, 
levelHypothesis, 
independent_pairFormation, 
voidEquality, 
isect_memberEquality, 
int_eqEquality, 
dependent_pairFormation, 
approximateComputation, 
dependent_set_memberEquality, 
addLevel, 
productIsType, 
functionEquality
Latex:
\mforall{}[Gamma:j\mvdash{}].  \mforall{}[A:\{Gamma  \mvdash{}  \_\}].  \mforall{}[cA:Gamma  \mvdash{}  Compositon(A)].
    (cop-to-cfun(cfun-to-cop(Gamma;A;cA))  =  cA)
Date html generated:
2020_05_20-PM-04_35_07
Last ObjectModification:
2020_05_01-PM-09_20_18
Theory : cubical!type!theory
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