Nuprl Lemma : satisfies-face-lattice-tube

∀I:fset(ℕ). ∀i:{i:ℕ| ¬i ∈ I} . ∀phi:𝔽(I). ∀j:{j:ℕ| ¬j ∈ I+i} . ∀K:fset(ℕ). ∀g:K ⟶ I+j.
  ((face-lattice-tube(I;phi;j) g) = 1 ⇐⇒ (phi s ⋅ g) = 1 ∨ ((g j) = 0 ∈ Point(dM(K))) ∨ ((g j) = 1 ∈ Point(dM(K))))


Proof




Definitions occuring in Statement :  name-morph-satisfies: (psi f) = 1,  face-lattice-tube: face-lattice-tube(I;phi;j),  face-presheaf: 𝔽,  I_cube: A(I),  nc-s: s,  add-name: I+i,  nh-comp: g ⋅ f,  names-hom: I ⟶ J,  dM1: 1,  dM0: 0,  dM: dM(I),  lattice-point: Point(l),  fset-member: a ∈ s,  fset: fset(T),  int-deq: IntDeq,  nat: ℕ,  all: ∀x:A. B[x],  iff: P ⇐⇒ Q,  not: ¬A,  or: P ∨ Q,  set: {x:A| B[x]} ,  apply: f a,  equal: s = t ∈ T
Definitions unfolded in proof :  all: ∀x:A. B[x],  member: t ∈ T,  uall: ∀[x:A]. B[x],  prop: ℙ,  so_lambda: λ2x.t[x],  subtype_rel: A ⊆r B,  uimplies: b supposing a,  nat: ℕ,  so_apply: x[s],  face-lattice-tube: face-lattice-tube(I;phi;j),  fl-join: fl-join(I;x;y),  names: names(I),  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,  I_cube: A(I),  functor-ob: ob(F),  pi1: fst(t),  face-presheaf: 𝔽,  and: P ∧ Q,  iff: P ⇐⇒ Q,  implies: P ⇒ Q,  rev_implies: P ⇐ Q,  DeMorgan-algebra: DeMorganAlgebra,  guard: {T},  names-hom: I ⟶ J,  uiff: uiff(P;Q),  or: P ∨ Q,  rev_uimplies: rev_uimplies(P;Q)
Lemmas referenced :  names-hom_wf,  add-name_wf,  fset_wf,  nat_wf,  set_wf,  not_wf,  fset-member_wf,  int-deq_wf,  strong-subtype-deq-subtype,  strong-subtype-set3,  le_wf,  strong-subtype-self,  I_cube_wf,  face-presheaf_wf,  fl0_wf,  trivial-member-add-name1,  subtype_rel_self,  names_wf,  assert_wf,  fset-antichain_wf,  union-deq_wf,  names-deq_wf,  fset-all_wf,  fset-contains-none_wf,  face-lattice-constraints_wf,  fl1_wf,  name-morph-satisfies_wf,  fl-join_wf,  cube-set-restriction_wf,  nc-s_wf,  f-subset-add-name,  or_wf,  nh-comp_wf,  equal_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,  dM0_wf,  dM1_wf,  name-morph-satisfies-join,  name-morph-satisfies-fl0,  name-morph-satisfies-fl1,  name-morph-satisfies-comp
Rules used in proof :  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  lambdaFormation,  cut,  introduction,  extract_by_obid,  sqequalHypSubstitution,  isectElimination,  thin,  hypothesisEquality,  setElimination,  rename,  hypothesis,  sqequalRule,  lambdaEquality,  applyEquality,  intEquality,  independent_isectElimination,  because_Cache,  natural_numberEquality,  dependent_functionElimination,  dependent_set_memberEquality,  setEquality,  unionEquality,  productEquality,  independent_pairFormation,  instantiate,  cumulativity,  universeEquality,  addLevel,  productElimination,  independent_functionElimination,  orFunctionality,  equalityTransitivity,  equalitySymmetry,  levelHypothesis,  promote_hyp,  unionElimination,  inlFormation,  inrFormation

Latex:
\mforall{}I:fset(\mBbbN{}).  \mforall{}i:\{i:\mBbbN{}|  \mneg{}i  \mmember{}  I\}  .  \mforall{}phi:\mBbbF{}(I).  \mforall{}j:\{j:\mBbbN{}|  \mneg{}j  \mmember{}  I+i\}  .  \mforall{}K:fset(\mBbbN{}).  \mforall{}g:K  {}\mrightarrow{}  I+j.
    ((face-lattice-tube(I;phi;j)  g)  =  1  \mLeftarrow{}{}\mRightarrow{}  (phi  s  \mcdot{}  g)  =  1  \mvee{}  ((g  j)  =  0)  \mvee{}  ((g  j)  =  1))



Date html generated: 2017_10_05-AM-01_19_26
Last ObjectModification: 2017_07_28-AM-09_33_30

Theory : cubical!type!theory


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