Nuprl Lemma : rev_fill_term_1

∀[Gamma:j⊢]. ∀[phi:{Gamma ⊢ _:𝔽}]. ∀[A:{Gamma.𝕀 ⊢ _}]. ∀[cA:Gamma.𝕀 ⊢ Compositon(A)]. ∀[u:{Gamma.𝕀, (phi)p ⊢ _:A}].
∀[a1:{Gamma ⊢ _:(A)[1(𝕀)][phi |⟶ u[1]]}].
  ((rev_fill_term(Gamma;cA;phi;u;a1))[1(𝕀)] = a1 ∈ {Gamma ⊢ _:(A)[1(𝕀)]})


Proof




Definitions occuring in Statement :  rev_fill_term: rev_fill_term(Gamma;cA;phi;u;a1),  composition-structure: Gamma ⊢ Compositon(A),  partial-term-1: u[1],  constrained-cubical-term: {Gamma ⊢ _:A[phi |⟶ t]},  context-subset: Gamma, phi,  face-type: 𝔽,  interval-1: 1(𝕀),  interval-type: 𝕀,  csm-id-adjoin: [u],  cc-fst: p,  cube-context-adjoin: X.A,  csm-ap-term: (t)s,  cubical-term: {X ⊢ _:A},  csm-ap-type: (AF)s,  cubical-type: {X ⊢ _},  cubical_set: CubicalSet,  uall: ∀[x:A]. B[x],  equal: s = t ∈ T
Definitions unfolded in proof :  uall: ∀[x:A]. B[x],  member: t ∈ T,  cc-snd: q,  interval-type: 𝕀,  cc-fst: p,  csm-ap-type: (AF)s,  constant-cubical-type: (X),  subtype_rel: A ⊆r B,  uimplies: b supposing a,  rev_fill_term: rev_fill_term(Gamma;cA;phi;u;a1),  rev-type-line: (A)-,  guard: {T},  csm-ap-term: (t)s,  interval-rev: 1-(r),  csm-adjoin: (s;u),  cubical-term-at: u(a),  csm-ap: (s)x,  pi1: fst(t),  squash: ↓T,  prop: ℙ,  true: True,  partial-term-0: u[0],  partial-term-1: u[1],  interval-0: 0(𝕀),  csm-id-adjoin: [u],  csm-id: 1(X),  pi2: snd(t),  all: ∀x:A. B[x],  implies: P ⇒ Q,  interval-1: 1(𝕀),  cube_set_map: A ⟶ B,  psc_map: A ⟶ B,  nat-trans: nat-trans(C;D;F;G),  cat-ob: cat-ob(C),  op-cat: op-cat(C),  spreadn: spread4,  cube-cat: CubeCat,  fset: fset(T),  quotient: x,y:A//B[x; y],  cat-arrow: cat-arrow(C),  type-cat: TypeCat,  names-hom: I ⟶ J,  cat-comp: cat-comp(C),  compose: f o g,  composition-structure: Gamma ⊢ Compositon(A),  constrained-cubical-term: {Gamma ⊢ _:A[phi |⟶ t]}
Lemmas referenced :  interval-rev_wf,  cube-context-adjoin_wf,  interval-type_wf,  cc-snd_wf,  subset-cubical-term2,  sub_cubical_set_self,  csm-ap-type_wf,  cc-fst_wf,  csm-interval-type,  constrained-cubical-term_wf,  cubical_set_cumulativity-i-j,  csm-id-adjoin_wf-interval-1,  cubical-type-cumulativity2,  partial-term-1_wf,  cubical-term_wf,  context-subset_wf,  csm-ap-term_wf,  face-type_wf,  csm-face-type,  thin-context-subset,  composition-structure_wf,  cubical-type_wf,  cubical_set_wf,  context-subset-map,  csm-adjoin_wf,  squash_wf,  true_wf,  rev-type-line-0,  cubical-type-cumulativity,  context-adjoin-subset2,  cube_set_map_wf,  context-subset-adjoin-subtype,  interval-rev-0,  csm-id-adjoin_wf,  subtype_rel_self,  fill_term_0,  rev-type-line_wf,  rev-type-comp_wf,  csm-id-adjoin_wf-interval-0,  equal_wf,  istype-universe,  fill_term_wf,  interval-rev-1
Rules used in proof :  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  isect_memberFormation_alt,  cut,  introduction,  extract_by_obid,  sqequalHypSubstitution,  isectElimination,  thin,  instantiate,  hypothesis,  hypothesisEquality,  sqequalRule,  equalityTransitivity,  equalitySymmetry,  applyEquality,  because_Cache,  independent_isectElimination,  Error :memTop,  universeIsType,  lambdaEquality_alt,  imageElimination,  natural_numberEquality,  imageMemberEquality,  baseClosed,  hyp_replacement,  inhabitedIsType,  lambdaFormation_alt,  equalityIstype,  dependent_functionElimination,  independent_functionElimination,  applyLambdaEquality,  universeEquality,  setElimination,  rename

Latex:
\mforall{}[Gamma:j\mvdash{}].  \mforall{}[phi:\{Gamma  \mvdash{}  \_:\mBbbF{}\}].  \mforall{}[A:\{Gamma.\mBbbI{}  \mvdash{}  \_\}].  \mforall{}[cA:Gamma.\mBbbI{}  \mvdash{}  Compositon(A)].
\mforall{}[u:\{Gamma.\mBbbI{},  (phi)p  \mvdash{}  \_:A\}].  \mforall{}[a1:\{Gamma  \mvdash{}  \_:(A)[1(\mBbbI{})][phi  |{}\mrightarrow{}  u[1]]\}].
    ((rev\_fill\_term(Gamma;cA;phi;u;a1))[1(\mBbbI{})]  =  a1)



Date html generated: 2020_05_20-PM-04_51_40
Last ObjectModification: 2020_04_14-AM-11_54_27

Theory : cubical!type!theory


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