Nuprl Lemma : nc-e'-comp-m

∀[I,J:fset(ℕ)]. ∀[i:{i:ℕ| ¬i ∈ I} ]. ∀[j:{j:ℕ| ¬j ∈ J} ]. ∀[g:J ⟶ I]. ∀[k:{k:ℕ| ¬k ∈ I+i} ]. ∀[l:{l:ℕ| ¬l ∈ J+j} ].
  (g,i=j ⋅ m(j;l) = m(i;k) ⋅ g,i=j,k=l ∈ J+j+l ⟶ I+i)


Proof




Definitions occuring in Statement :  nc-e': g,i=j,  nc-m: m(i;j),  add-name: I+i,  nh-comp: g ⋅ f,  names-hom: I ⟶ J,  fset-member: a ∈ s,  fset: fset(T),  int-deq: IntDeq,  nat: ℕ,  uall: ∀[x:A]. B[x],  not: ¬A,  set: {x:A| B[x]} ,  equal: s = t ∈ T
Definitions unfolded in proof :  assert: ↑b,  bnot: ¬bb,  guard: {T},  sq_type: SQType(T),  bfalse: ff,  ifthenelse: if b then t else f fi ,  uiff: uiff(P;Q),  btrue: tt,  it: ⋅,  unit: Unit,  bool: 𝔹,  names: names(I),  nc-e': g,i=j,  nc-m: m(i;j),  compose: f o g,  top: Top,  so_apply: x[s],  so_lambda: λ2x.t[x],  subtype_rel: A ⊆r B,  prop: ℙ,  and: P ∧ Q,  false: False,  exists: ∃x:A. B[x],  satisfiable_int_formula: satisfiable_int_formula(fmla),  implies: P ⇒ Q,  not: ¬A,  uimplies: b supposing a,  or: P ∨ Q,  decidable: Dec(P),  all: ∀x:A. B[x],  ge: i ≥ j ,  nat: ℕ,  names-hom: I ⟶ J,  member: t ∈ T,  uall: ∀[x:A]. B[x],  rev_implies: P ⇐ Q,  iff: P ⇐⇒ Q,  squash: ↓T,  true: True,  DeMorgan-algebra: DeMorganAlgebra,  nequal: a ≠ b ∈ T ,  sq_stable: SqStable(P)
Lemmas referenced :  nh-comp-sq,  neg_assert_of_eq_int,  assert-bnot,  bool_subtype_base,  bool_wf,  subtype_base_sq,  bool_cases_sqequal,  eqff_to_assert,  assert_of_eq_int,  eqtt_to_assert,  eq_int_wf,  trivial-member-add-name1,  nc-m_wf,  names-hom_wf,  istype-void,  strong-subtype-self,  le_wf,  strong-subtype-set3,  strong-subtype-deq-subtype,  int-deq_wf,  nat_wf,  fset-member_wf,  istype-nat,  istype-le,  int_formula_prop_wf,  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,  istype-int,  itermVar_wf,  itermConstant_wf,  intformle_wf,  intformnot_wf,  intformand_wf,  full-omega-unsat,  decidable__le,  nat_properties,  add-name_wf,  names_wf,  trivial-member-add-name2,  iff_weakening_equal,  subtype_rel_self,  dM-lift-dMpair,  dM-lift-inc,  istype-universe,  true_wf,  squash_wf,  equal_wf,  int_formula_prop_eq_lemma,  intformeq_wf,  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,  nc-e'_wf,  eq_int_eq_true,  btrue_wf,  not_wf,  int_subtype_base,  dMpair-eq-meet,  not-added-name,  uall_wf,  dM-lift_wf2,  dM-point-subtype,  f-subset-add-name,  names-subtype,  fset-member-add-name,  f-subset-add-name1,  f-subset_wf,  dM-lift-is-id2,  decidable__equal_int,  dM_inc_wf
Rules used in proof :  cumulativity,  instantiate,  promote_hyp,  equalityIstype,  productElimination,  equalitySymmetry,  equalityTransitivity,  equalityElimination,  lambdaFormation_alt,  inhabitedIsType,  isectIsTypeImplies,  axiomEquality,  isect_memberEquality_alt,  because_Cache,  intEquality,  applyEquality,  functionIsType,  setIsType,  voidElimination,  universeIsType,  independent_pairFormation,  sqequalRule,  Error :memTop,  int_eqEquality,  lambdaEquality_alt,  dependent_pairFormation_alt,  independent_functionElimination,  approximateComputation,  independent_isectElimination,  unionElimination,  natural_numberEquality,  dependent_functionElimination,  hypothesis,  rename,  setElimination,  dependent_set_memberEquality_alt,  hypothesisEquality,  thin,  isectElimination,  sqequalHypSubstitution,  extract_by_obid,  functionExtensionality,  cut,  introduction,  isect_memberFormation_alt,  sqequalReflexivity,  computationStep,  sqequalTransitivity,  sqequalSubstitution,  dependent_set_memberEquality,  lambdaEquality,  baseClosed,  imageMemberEquality,  universeEquality,  imageElimination,  isectEquality,  productEquality,  lambdaFormation,  setEquality,  dependent_pairFormation,  applyLambdaEquality,  inrFormation,  isect_memberEquality,  voidEquality

Latex:
\mforall{}[I,J:fset(\mBbbN{})].  \mforall{}[i:\{i:\mBbbN{}|  \mneg{}i  \mmember{}  I\}  ].  \mforall{}[j:\{j:\mBbbN{}|  \mneg{}j  \mmember{}  J\}  ].  \mforall{}[g:J  {}\mrightarrow{}  I].  \mforall{}[k:\{k:\mBbbN{}|  \mneg{}k  \mmember{}  I+i\}  ].
\mforall{}[l:\{l:\mBbbN{}|  \mneg{}l  \mmember{}  J+j\}  ].
    (g,i=j  \mcdot{}  m(j;l)  =  m(i;k)  \mcdot{}  g,i=j,k=l)



Date html generated: 2020_05_20-PM-01_37_31
Last ObjectModification: 2020_01_15-PM-02_37_08

Theory : cubical!type!theory


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