Nuprl Lemma : nh-comp-nc-m-eq2

∀[I,K:fset(ℕ)]. ∀[i,j:ℕ]. ∀[f:K ⟶ I+i+j].  (i0) ⋅ s ⋅ f = m(i;j) ⋅ f ∈ K ⟶ I+i supposing (f i) = 0 ∈ Point(dM(K))


Proof




Definitions occuring in Statement :  nc-m: m(i;j),  nc-0: (i0),  nc-s: s,  add-name: I+i,  nh-comp: g ⋅ f,  names-hom: I ⟶ J,  dM0: 0,  dM: dM(I),  lattice-point: Point(l),  fset: fset(T),  nat: ℕ,  uimplies: b supposing a,  uall: ∀[x:A]. B[x],  apply: f a,  equal: s = t ∈ T
Definitions unfolded in proof :  uall: ∀[x:A]. B[x],  member: t ∈ T,  uimplies: b supposing a,  prop: ℙ,  squash: ↓T,  true: True,  subtype_rel: A ⊆r B,  DeMorgan-algebra: DeMorganAlgebra,  so_lambda: λ2x.t[x],  and: P ∧ Q,  guard: {T},  so_apply: x[s],  names-hom: I ⟶ J,  all: ∀x:A. B[x],  names: names(I),  nat: ℕ,  implies: P ⇒ Q,  iff: P ⇐⇒ Q,  rev_implies: P ⇐ Q
Lemmas referenced :  nh-comp-nc-m-eq,  equal_wf,  squash_wf,  true_wf,  names-hom_wf,  add-name_wf,  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,  trivial-member-add-name2,  fset-member_wf,  nat_wf,  int-deq_wf,  strong-subtype-deq-subtype,  strong-subtype-set3,  le_wf,  strong-subtype-self,  dM0_wf,  fset_wf,  f-subset-add-name1,  f-subset-add-name,  nh-comp-assoc,  nc-s_wf,  nc-0_wf,  iff_weakening_equal,  nh-comp_wf,  s-comp-s
Rules used in proof :  cut,  introduction,  extract_by_obid,  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  isect_memberFormation,  hypothesis,  sqequalHypSubstitution,  isectElimination,  thin,  hypothesisEquality,  independent_isectElimination,  hyp_replacement,  equalitySymmetry,  sqequalRule,  applyEquality,  lambdaEquality,  imageElimination,  equalityTransitivity,  universeEquality,  natural_numberEquality,  imageMemberEquality,  baseClosed,  instantiate,  productEquality,  cumulativity,  because_Cache,  dependent_functionElimination,  dependent_set_memberEquality,  intEquality,  independent_functionElimination,  productElimination

Latex:
\mforall{}[I,K:fset(\mBbbN{})].  \mforall{}[i,j:\mBbbN{}].  \mforall{}[f:K  {}\mrightarrow{}  I+i+j].    (i0)  \mcdot{}  s  \mcdot{}  f  =  m(i;j)  \mcdot{}  f  supposing  (f  i)  =  0



Date html generated: 2017_10_05-AM-01_03_26
Last ObjectModification: 2017_07_28-AM-09_26_40

Theory : cubical!type!theory


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