Nuprl Lemma : nc-0-s-0

∀[I:fset(ℕ)]. ∀[i,j:ℕ].  ((i0) ⋅ s ⋅ (i0) = s ⋅ (i0) ∈ I+j ⟶ I+i)


Proof




Definitions occuring in Statement :  nc-0: (i0),  nc-s: s,  add-name: I+i,  nh-comp: g ⋅ f,  names-hom: I ⟶ J,  fset: fset(T),  nat: ℕ,  uall: ∀[x:A]. B[x],  equal: s = t ∈ T
Definitions unfolded in proof :  uall: ∀[x:A]. B[x],  member: t ∈ T,  names-hom: I ⟶ J,  nh-comp: g ⋅ f,  dma-lift-compose: dma-lift-compose(I;J;eqi;eqj;f;g),  compose: f o g,  dM: dM(I),  dM-lift: dM-lift(I;J;f),  nc-s: s,  nc-0: (i0),  squash: ↓T,  prop: ℙ,  true: True,  subtype_rel: A ⊆r B,  uimplies: b supposing a,  guard: {T},  iff: P ⇐⇒ Q,  and: P ∧ Q,  rev_implies: P ⇐ Q,  implies: P ⇒ Q,  names: names(I),  nat: ℕ,  all: ∀x:A. B[x],  bool: 𝔹,  unit: Unit,  it: ⋅,  btrue: tt,  uiff: uiff(P;Q),  ifthenelse: if b then t else f fi ,  bfalse: ff,  exists: ∃x:A. B[x],  so_lambda: λ2x.t[x],  so_apply: x[s],  or: P ∨ Q,  sq_type: SQType(T),  bnot: ¬bb,  assert: ↑b,  false: False,  top: Top,  DeMorgan-algebra: DeMorganAlgebra,  empty-fset: {},  nil: [],  dM0: 0,  lattice-0: 0,  record-select: r.x,  free-DeMorgan-algebra: free-DeMorgan-algebra(T;eq),  mk-DeMorgan-algebra: mk-DeMorgan-algebra(L;n),  record-update: r[x := v],  eq_atom: x =a y,  free-DeMorgan-lattice: free-DeMorgan-lattice(T;eq),  free-dist-lattice: free-dist-lattice(T; eq),  mk-bounded-distributive-lattice: mk-bounded-distributive-lattice,  mk-bounded-lattice: mk-bounded-lattice(T;m;j;z;o),  not: ¬A,  nequal: a ≠ b ∈ T ,  ge: i ≥ j ,  satisfiable_int_formula: satisfiable_int_formula(fmla),  lattice-hom: Hom(l1;l2),  bounded-lattice-hom: Hom(l1;l2),  dma-hom: dma-hom(dma1;dma2)
Lemmas referenced :  nc-0_wf,  add-name_wf,  equal_wf,  squash_wf,  true_wf,  istype-universe,  names-hom_wf,  add-name-com,  subtype_rel_self,  iff_weakening_equal,  names_wf,  istype-nat,  eq_int_wf,  eqtt_to_assert,  assert_of_eq_int,  eqff_to_assert,  set_subtype_base,  le_wf,  istype-int,  int_subtype_base,  nat_wf,  fset-member_wf,  int-deq_wf,  bool_subtype_base,  bool_cases_sqequal,  subtype_base_sq,  bool_wf,  assert-bnot,  neg_assert_of_eq_int,  not-added-name,  dM0-sq-empty,  istype-void,  lattice-point_wf,  dM_wf,  subtype_rel_set,  DeMorgan-algebra-structure_wf,  lattice-structure_wf,  lattice-axioms_wf,  bounded-lattice-structure-subtype,  DeMorgan-algebra-structure-subtype,  subtype_rel_transitivity,  bounded-lattice-structure_wf,  bounded-lattice-axioms_wf,  uall_wf,  lattice-meet_wf,  lattice-join_wf,  DeMorgan-algebra-axioms_wf,  dM-lift_wf2,  nc-s_wf,  f-subset-add-name1,  f-subset-add-name,  names-subtype,  dM-lift-0,  dM-lift-inc,  dM0_wf,  eq_int_eq_true,  btrue_wf,  strong-subtype-deq-subtype,  strong-subtype-set3,  strong-subtype-self,  bfalse_wf,  bnot_wf,  assert_elim,  btrue_neq_bfalse,  nat_properties,  full-omega-unsat,  intformand_wf,  intformeq_wf,  itermVar_wf,  intformnot_wf,  int_formula_prop_and_lemma,  int_formula_prop_eq_lemma,  int_term_value_var_lemma,  int_formula_prop_not_lemma,  int_formula_prop_wf,  dM_inc_wf,  all_wf,  dma-hom_wf,  dM-lift_wf
Rules used in proof :  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  isect_memberFormation_alt,  introduction,  cut,  functionExtensionality,  sqequalRule,  extract_by_obid,  sqequalHypSubstitution,  isectElimination,  thin,  hypothesisEquality,  hypothesis,  applyEquality,  instantiate,  lambdaEquality_alt,  imageElimination,  equalityTransitivity,  equalitySymmetry,  universeIsType,  inhabitedIsType,  universeEquality,  because_Cache,  natural_numberEquality,  imageMemberEquality,  baseClosed,  independent_isectElimination,  productElimination,  independent_functionElimination,  hyp_replacement,  isect_memberEquality_alt,  axiomEquality,  isectIsTypeImplies,  setElimination,  rename,  lambdaFormation_alt,  unionElimination,  equalityElimination,  dependent_pairFormation_alt,  equalityIsType4,  baseApply,  closedConclusion,  intEquality,  promote_hyp,  dependent_functionElimination,  cumulativity,  voidElimination,  equalityIsType1,  productEquality,  functionEquality,  dependent_set_memberEquality_alt,  independent_pairFormation,  productIsType,  applyLambdaEquality,  approximateComputation,  int_eqEquality,  setEquality,  lambdaEquality

Latex:
\mforall{}[I:fset(\mBbbN{})].  \mforall{}[i,j:\mBbbN{}].    ((i0)  \mcdot{}  s  \mcdot{}  (i0)  =  s  \mcdot{}  (i0))



Date html generated: 2019_11_04-PM-05_32_07
Last ObjectModification: 2018_11_08-AM-11_03_58

Theory : cubical!type!theory


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