Nuprl Lemma : map-to-context-subset-disjoint

∀[Gamma:j⊢]. ∀[phi,psi:{Gamma ⊢ _:𝔽}]. ∀[H:j⊢].
  ∀[sigma:H j⟶ Gamma, (phi ∧ psi)]. ∀[I:fset(ℕ)].  (¬H(I)) supposing Gamma ⊢ ((phi ∧ psi) ⇒ 0(𝔽))


Proof




Definitions occuring in Statement :  face-term-implies: Gamma ⊢ (phi ⇒ psi),  context-subset: Gamma, phi,  face-and: (a ∧ b),  face-0: 0(𝔽),  face-type: 𝔽,  cubical-term: {X ⊢ _:A},  cube_set_map: A ⟶ B,  I_cube: A(I),  cubical_set: CubicalSet,  fset: fset(T),  nat: ℕ,  uimplies: b supposing a,  uall: ∀[x:A]. B[x],  not: ¬A
Definitions unfolded in proof :  uall: ∀[x:A]. B[x],  member: t ∈ T,  uimplies: b supposing a,  not: ¬A,  implies: P ⇒ Q,  false: False,  cube_set_map: A ⟶ B,  psc_map: A ⟶ B,  nat-trans: nat-trans(C;D;F;G),  context-subset: Gamma, phi,  type-cat: TypeCat,  cube-cat: CubeCat,  op-cat: op-cat(C),  spreadn: spread4,  all: ∀x:A. B[x],  I_cube: A(I),  prop: ℙ,  face-term-implies: Gamma ⊢ (phi ⇒ psi),  cubical-term-at: u(a),  face-0: 0(𝔽),  lattice-0: 0,  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,  empty-fset: {},  nil: [],  it: ⋅
Lemmas referenced :  cat_arrow_triple_lemma,  ob_pair_lemma,  cat_ob_pair_lemma,  I_cube_wf,  fset_wf,  nat_wf,  cube_set_map_wf,  context-subset_wf,  face-and_wf,  face-term-implies_wf,  face-0_wf,  cubical-term_wf,  face-type_wf,  cubical_set_wf,  void-list-equality,  nil_wf,  face-lattice-0-not-1
Rules used in proof :  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  isect_memberFormation_alt,  introduction,  cut,  lambdaFormation_alt,  thin,  sqequalHypSubstitution,  setElimination,  rename,  sqequalRule,  extract_by_obid,  dependent_functionElimination,  Error :memTop,  hypothesis,  hypothesisEquality,  independent_functionElimination,  because_Cache,  voidElimination,  universeIsType,  isectElimination,  lambdaEquality_alt,  functionIsTypeImplies,  inhabitedIsType,  isect_memberEquality_alt,  isectIsTypeImplies,  instantiate,  voidEquality

Latex:
\mforall{}[Gamma:j\mvdash{}].  \mforall{}[phi,psi:\{Gamma  \mvdash{}  \_:\mBbbF{}\}].  \mforall{}[H:j\mvdash{}].
    \mforall{}[sigma:H  j{}\mrightarrow{}  Gamma,  (phi  \mwedge{}  psi)].  \mforall{}[I:fset(\mBbbN{})].    (\mneg{}H(I))  supposing  Gamma  \mvdash{}  ((phi  \mwedge{}  psi)  {}\mRightarrow{}  0(\mBbbF{}))



Date html generated: 2020_05_20-PM-03_07_13
Last ObjectModification: 2020_04_04-PM-05_23_46

Theory : cubical!type!theory


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