Nuprl Lemma : pi-comp_wf3

∀[Gamma:j⊢]. ∀[A:{Gamma ⊢ _}]. ∀[B:{Gamma.A ⊢ _}]. ∀[cA:Gamma ⊢ CompOp(A)]. ∀[cB:Gamma.A ⊢ CompOp(B)].
  (pi-comp(Gamma;A;B;cA;cB) ∈ I:fset(ℕ)
   ⟶ i:{i:ℕ| ¬i ∈ I} 
   ⟶ rho:Gamma(I+i)
   ⟶ phi:𝔽(I)
   ⟶ mu:{I+i,s(phi) ⊢ _:(ΠA B)<rho> o iota}
   ⟶ lambda:cubical-path-0(Gamma;ΠA B;I;i;rho;phi;mu)
   ⟶ ΠA B((i1)(rho)))


Proof




Definitions occuring in Statement :  pi-comp: pi-comp(Gamma;A;B;cA;cB),  composition-op: Gamma ⊢ CompOp(A),  cubical-path-0: cubical-path-0(Gamma;A;I;i;rho;phi;u),  cubical-pi: ΠA B,  cube-context-adjoin: X.A,  cubical-term: {X ⊢ _:A},  csm-ap-type: (AF)s,  cubical-type-at: A(a),  cubical-type: {X ⊢ _},  subset-iota: iota,  cubical-subset: I,psi,  face-presheaf: 𝔽,  csm-comp: G o F,  context-map: <rho>,  formal-cube: formal-cube(I),  cube-set-restriction: f(s),  I_cube: A(I),  cubical_set: CubicalSet,  nc-1: (i1),  nc-s: s,  add-name: I+i,  fset-member: a ∈ s,  fset: fset(T),  int-deq: IntDeq,  nat: ℕ,  uall: ∀[x:A]. B[x],  not: ¬A,  member: t ∈ T,  set: {x:A| B[x]} ,  function: x:A ⟶ B[x]
Definitions unfolded in proof :  uall: ∀[x:A]. B[x],  member: t ∈ T,  cubical-pi: ΠA B,  all: ∀x:A. B[x],  cubical-pi-family: cubical-pi-family(X;A;B;I;a),  nat: ℕ,  ge: i ≥ j ,  decidable: Dec(P),  or: P ∨ Q,  uimplies: b supposing a,  not: ¬A,  implies: P ⇒ Q,  satisfiable_int_formula: satisfiable_int_formula(fmla),  exists: ∃x:A. B[x],  false: False,  and: P ∧ Q,  prop: ℙ,  subtype_rel: A ⊆r B,  squash: ↓T,  true: True,  guard: {T},  iff: P ⇐⇒ Q,  rev_implies: P ⇐ Q,  so_lambda: λ2x.t[x],  so_apply: x[s],  pi-comp: pi-comp(Gamma;A;B;cA;cB),  has-value: (a)↓,  let: let,  composition-op: Gamma ⊢ CompOp(A),  composition-uniformity: composition-uniformity(Gamma;A;comp),  cubical-path-1: cubical-path-1(Gamma;A;I;i;rho;phi;u),  nat-deq: NatDeq,  int-deq: IntDeq,  cc-adjoin-cube: (v;u),  cube-context-adjoin: X.A,  context-map: <rho>,  subset-iota: iota,  csm-comp: G o F,  subset-trans: subset-trans(I;J;f;x),  compose: f o g,  pi1: fst(t),  pi2: snd(t),  pi-comp-app: pi-comp-app(Gamma;A;I;i;rho;phi;mu;J;f;j;nu),  csm-ap-term: (t)s,  csm-ap: (s)x,  canonical-section: canonical-section(Gamma;A;I;rho;a),  cubical-app: app(w; u),  cubical-term: {X ⊢ _:A},  bdd-distributive-lattice: BoundedDistributiveLattice,  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,  uiff: uiff(P;Q),  rev_uimplies: rev_uimplies(P;Q),  functor-arrow: arrow(F),  cube-set-restriction: f(s),  csm-ap-type: (AF)s,  cubical-type-at: A(a),  label: ...$L... t,  cubical-path-0: cubical-path-0(Gamma;A;I;i;rho;phi;u),  pi-comp-lambda: pi-comp-lambda(Gamma;A;I;i;rho;lambda;J;f;j;nu)
Lemmas referenced :  pi-comp_wf2,  cubical_type_at_pair_lemma,  istype-cubical-type-at,  cube-set-restriction_wf,  add-name_wf,  nat_properties,  decidable__le,  full-omega-unsat,  intformand_wf,  intformnot_wf,  intformle_wf,  itermConstant_wf,  itermVar_wf,  istype-int,  int_formula_prop_and_lemma,  int_formula_prop_not_lemma,  int_formula_prop_le_lemma,  int_term_value_constant_lemma,  int_term_value_var_lemma,  int_formula_prop_wf,  istype-le,  nc-1_wf,  names-hom_wf,  cube-context-adjoin_wf,  cc-adjoin-cube_wf,  cubical-type-ap-morph_wf,  cubical-type-cumulativity2,  cubical_set_cumulativity-i-j,  nh-comp_wf,  subtype_rel-equal,  cubical-type-at_wf,  cube-set-restriction-comp,  equal_wf,  squash_wf,  true_wf,  istype-universe,  I_cube_wf,  subtype_rel_self,  iff_weakening_equal,  cc-adjoin-cube-restriction,  cubical-path-0_wf,  cubical-pi_wf,  cubical-term_wf,  cubical-subset_wf,  face-presheaf_wf2,  nc-s_wf,  f-subset-add-name,  csm-ap-type_wf,  csm-comp_wf,  formal-cube_wf1,  subset-iota_wf,  context-map_wf,  nat_wf,  not_wf,  fset-member_wf,  int-deq_wf,  strong-subtype-deq-subtype,  strong-subtype-set3,  le_wf,  strong-subtype-self,  fset_wf,  composition-op_wf,  cubical-type_wf,  cubical_set_wf,  pi-comp-nu-property,  istype-void,  istype-nat,  new-name_wf,  value-type-has-value,  set-value-type,  int-value-type,  nc-e'_wf,  pi-comp-nu_wf,  nc-r_wf,  trivial-member-add-name1,  nc-r'_wf,  nc-r'-r,  pi-comp-app_wf,  pi-comp-lambda_wf,  nh-comp-assoc,  nc-e'-lemma1,  cubical-type-ap-morph-comp,  subtype_rel_set,  cubical-path-condition'_wf,  pi-comp-nu-uniformity,  nc-e'-lemma6,  nat-deq_wf,  cubical-term-equal2,  fl-morph_wf,  fl-morph-restriction,  nc-e'-lemma3,  cube_set_map_wf,  subset-trans_wf,  csm-ap-comp-type,  csm-equal2,  I_cube_pair_redex_lemma,  arrow_pair_lemma,  cubical-subset-I_cube,  cubical-type-ap-morph-comp-eq-general,  csm-ap-term_wf,  name-morph-satisfies_wf,  lattice-point_wf,  face_lattice_wf,  bounded-lattice-structure_wf,  lattice-structure_wf,  lattice-axioms_wf,  bounded-lattice-structure-subtype,  bounded-lattice-axioms_wf,  lattice-meet_wf,  lattice-join_wf,  name-morph-satisfies-comp,  csm-ap-type-at,  csm-ap-csm-comp,  cube-set-restriction-id,  nh-id_wf,  csm-ap-restriction,  cubical-path-condition_wf,  nc-0_wf,  s-comp-if-lemma1,  r-comp-nc-0,  nc-r'-nc-1,  nc-e'-lemma2,  subtype_rel_wf,  cubical-type-ap-morph-comp-eq
Rules used in proof :  cut,  introduction,  extract_by_obid,  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  isect_memberFormation_alt,  hypothesis,  sqequalHypSubstitution,  isectElimination,  thin,  hypothesisEquality,  functionExtensionality,  sqequalRule,  dependent_functionElimination,  Error :memTop,  dependent_set_memberEquality_alt,  applyEquality,  lambdaFormation_alt,  setElimination,  rename,  because_Cache,  natural_numberEquality,  unionElimination,  independent_isectElimination,  approximateComputation,  independent_functionElimination,  dependent_pairFormation_alt,  lambdaEquality_alt,  int_eqEquality,  independent_pairFormation,  universeIsType,  voidElimination,  inhabitedIsType,  functionIsType,  equalityIstype,  instantiate,  imageElimination,  imageMemberEquality,  baseClosed,  equalityTransitivity,  equalitySymmetry,  universeEquality,  productElimination,  setEquality,  intEquality,  callbyvalueReduce,  hyp_replacement,  cumulativity,  dependent_pairEquality_alt,  applyLambdaEquality,  productEquality,  isectEquality,  productIsType

Latex:
\mforall{}[Gamma:j\mvdash{}].  \mforall{}[A:\{Gamma  \mvdash{}  \_\}].  \mforall{}[B:\{Gamma.A  \mvdash{}  \_\}].  \mforall{}[cA:Gamma  \mvdash{}  CompOp(A)].
\mforall{}[cB:Gamma.A  \mvdash{}  CompOp(B)].
    (pi-comp(Gamma;A;B;cA;cB)  \mmember{}  I:fset(\mBbbN{})
      {}\mrightarrow{}  i:\{i:\mBbbN{}|  \mneg{}i  \mmember{}  I\} 
      {}\mrightarrow{}  rho:Gamma(I+i)
      {}\mrightarrow{}  phi:\mBbbF{}(I)
      {}\mrightarrow{}  mu:\{I+i,s(phi)  \mvdash{}  \_:(\mPi{}A  B)<rho>  o  iota\}
      {}\mrightarrow{}  lambda:cubical-path-0(Gamma;\mPi{}A  B;I;i;rho;phi;mu)
      {}\mrightarrow{}  \mPi{}A  B((i1)(rho)))



Date html generated: 2020_05_20-PM-04_01_43
Last ObjectModification: 2020_04_21-AM-09_41_21

Theory : cubical!type!theory


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