Nuprl Lemma : tagged-test_wf

∀[T:Type]. ∀[x:"b":𝔹 |+ "a":ℤ].  (tagged-test(x) ∈ "b":𝔹 |+ "a":ℤ)


Proof




Definitions occuring in Statement :  tagged-test: tagged-test(x),  tagged+: T |+ z:B,  bool: 𝔹,  uall: ∀[x:A]. B[x],  top: Top,  member: t ∈ T,  int: ℤ,  token: "$token",  universe: Type
Definitions unfolded in proof :  uall: ∀[x:A]. B[x],  member: t ∈ T,  tagged-test: tagged-test(x),  all: ∀x:A. B[x],  implies: P ⇒ Q,  bool: 𝔹,  unit: Unit,  it: ⋅,  btrue: tt,  uiff: uiff(P;Q),  and: P ∧ Q,  uimplies: b supposing a,  ifthenelse: if b then t else f fi ,  tagged+: T |+ z:B,  isect2: T1 ⋂ T2,  top: Top,  bfalse: ff,  rev_uimplies: rev_uimplies(P;Q),  eq_atom: x =a y,  assert: ↑b,  true: True,  bnot: ¬bb,  iff: P ⇐⇒ Q,  not: ¬A,  prop: ℙ,  rev_implies: P ⇐ Q,  subtype_rel: A ⊆r B
Lemmas referenced :  eq_atom_wf,  tagged-tag_wf2,  tagged+_wf,  top_wf,  bool_wf,  uiff_transitivity,  equal-wf-T-base,  assert_wf,  eqtt_to_assert,  assert_of_eq_atom,  mk-tagged_wf_unequal,  iff_transitivity,  not_wf,  equal-wf-base,  false_wf,  true_wf,  iff_weakening_uiff,  assert_of_bnot,  bfalse_wf,  mk-tagged_wf,  assert_of_eq_int,  tagged-val_wf2,  isect2_subtype_rel2,  tag-case_wf,  bnot_wf,  eqff_to_assert,  equal_wf
Rules used in proof :  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  isect_memberFormation,  introduction,  cut,  sqequalRule,  extract_by_obid,  sqequalHypSubstitution,  isectElimination,  thin,  hypothesis,  tokenEquality,  intEquality,  hypothesisEquality,  because_Cache,  lambdaFormation,  unionElimination,  equalityElimination,  equalityTransitivity,  equalitySymmetry,  baseClosed,  atomEquality,  independent_functionElimination,  productElimination,  independent_isectElimination,  isect_memberEquality,  independent_pairFormation,  natural_numberEquality,  impliesFunctionality,  voidElimination,  voidEquality,  addEquality,  applyEquality,  dependent_functionElimination,  axiomEquality,  universeEquality

Latex:
\mforall{}[T:Type].  \mforall{}[x:"b":\mBbbB{}  |+  "a":\mBbbZ{}].    (tagged-test(x)  \mmember{}  "b":\mBbbB{}  |+  "a":\mBbbZ{})



Date html generated: 2018_05_21-PM-08_43_07
Last ObjectModification: 2017_07_26-PM-06_07_02

Theory : general


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