Nuprl Lemma : sg-normalize-win2

∀[g:SimpleGame]. win2(g) ≡ win2(sg-normalize(g))


Proof




Definitions occuring in Statement :  sg-normalize: sg-normalize(g),  win2: win2(g),  simple-game: SimpleGame,  ext-eq: A ≡ B,  uall: ∀[x:A]. B[x]
Definitions unfolded in proof :  uall: ∀[x:A]. B[x],  member: t ∈ T,  win2: win2(g),  ext-eq: A ≡ B,  and: P ∧ Q,  subtype_rel: A ⊆r B,  all: ∀x:A. B[x],  nat: ℕ,  implies: P ⇒ Q,  false: False,  ge: i ≥ j ,  uimplies: b supposing a,  not: ¬A,  satisfiable_int_formula: satisfiable_int_formula(fmla),  exists: ∃x:A. B[x],  top: Top,  prop: ℙ,  guard: {T},  int_seg: {i..j-},  lelt: i ≤ j < k,  decidable: Dec(P),  or: P ∨ Q,  so_lambda: λ2x.t[x],  so_apply: x[s],  sq_type: SQType(T),  win2strat: win2strat(g;n),  squash: ↓T,  true: True,  iff: P ⇐⇒ Q,  rev_implies: P ⇐ Q,  uiff: uiff(P;Q),  ifthenelse: if b then t else f fi ,  btrue: tt,  bfalse: ff,  bool: 𝔹,  unit: Unit,  it: ⋅,  subtract: n - m,  less_than': less_than'(a;b),  le: A ≤ B,  cand: A c∧ B,  play-item: moves[i],  eq_int: (i =z j),  strat2play: strat2play(g;n;s),  sq_stable: SqStable(P),  play-len: ||moves||,  sg-reachable: sg-reachable(g;x;y),  less_than: a < b,  nat_plus: ℕ+,  bnot: ¬bb,  assert: ↑b,  pi2: snd(t),  seq-item: s[i]
Lemmas referenced :  simple-game_wf,  nat_properties,  full-omega-unsat,  intformand_wf,  intformle_wf,  itermConstant_wf,  itermVar_wf,  intformless_wf,  istype-int,  int_formula_prop_and_lemma,  istype-void,  int_formula_prop_le_lemma,  int_term_value_constant_lemma,  int_term_value_var_lemma,  int_formula_prop_less_lemma,  int_formula_prop_wf,  ge_wf,  istype-less_than,  int_seg_properties,  int_seg_wf,  subtract-1-ge-0,  decidable__equal_int,  subtract_wf,  subtype_base_sq,  set_subtype_base,  int_subtype_base,  intformnot_wf,  intformeq_wf,  itermSubtract_wf,  int_formula_prop_not_lemma,  int_formula_prop_eq_lemma,  int_term_value_subtract_lemma,  decidable__le,  decidable__lt,  istype-le,  subtype_rel_self,  win2strat_wf,  sg-normalize_wf,  itermAdd_wf,  int_term_value_add_lemma,  istype-nat,  eq_int_wf,  equal-wf-base,  bool_wf,  le_wf,  assert_wf,  bnot_wf,  not_wf,  equal_wf,  squash_wf,  true_wf,  istype-universe,  eq_int_eq_true,  btrue_wf,  iff_weakening_equal,  btrue_neq_bfalse,  istype-assert,  subtype_rel-equal,  nat_wf,  base_wf,  eqtt_to_assert,  assert_of_eq_int,  strat2play_wf,  play-len_wf,  bool_cases,  bool_subtype_base,  eqff_to_assert,  iff_transitivity,  iff_weakening_uiff,  assert_of_bnot,  uiff_transitivity,  le_weakening2,  le-add-cancel2,  not-lt-2,  le-add-cancel,  add-zero,  add_functionality_wrt_le,  add-commutes,  add-swap,  add-associates,  minus-minus,  minus-add,  minus-one-mul-top,  zero-add,  minus-one-mul,  condition-implies-le,  less-iff-le,  not-ge-2,  false_wf,  less_than_wf,  less_than_irreflexivity,  less_than_transitivity1,  sg-legal1_wf,  lelt_wf,  seq-item_wf,  seq-len_wf,  equal_functionality_wrt_subtype_rel2,  sg-init_wf,  sg-reachable_wf,  sg-pos_wf,  sequence_subtype,  sg-pos-normalize,  sg-init-normalize,  sg-legal1-normalize,  zero-mul,  add-mul-special,  not-le-2,  win2strat_subtype,  le_weakening,  sq_stable__le,  multiply_nat_wf,  add_nat_wf,  mul-associates,  add-is-int-iff,  mul_bounds_1a,  le-add-cancel-alt,  minus-zero,  not-equal-2,  sg-legal2-normalize,  sg-legal2_wf,  play-item_wf,  itermMultiply_wf,  int_term_value_mul_lemma,  strat2play_subtype,  strat2play-invariant,  strat2play-invariant-1,  seq-add_wf,  seq-truncate_wf,  subtract-add-cancel,  nat_plus_wf,  nat_plus_properties,  mul_preserves_le,  lt_int_wf,  assert_of_lt_int,  bool_cases_sqequal,  assert-bnot,  seq-add-len,  seq-add-item,  seq-len-truncate,  seq-truncate-item,  mod2-2n-plus-1,  subtype_rel_weakening,  ext-eq_inversion,  mul-commutes,  mul-distributes,  mul-distributes-right,  strat2play-reachable,  le_reflexive,  omega-shadow,  two-mul,  one-mul,  not-equal-implies-less,  sg-reachable_self,  mul-swap,  play-item-reachable,  sequence_wf,  dep-isect_wf,  subtype_rel_transitivity,  dep-isect-subtype,  uall_wf
Rules used in proof :  sqequalSubstitution,  sqequalTransitivity,  computationStep,  sqequalReflexivity,  Error :isect_memberFormation_alt,  introduction,  cut,  sqequalRule,  sqequalHypSubstitution,  productElimination,  thin,  independent_pairEquality,  axiomEquality,  hypothesis,  Error :universeIsType,  extract_by_obid,  Error :lambdaFormation_alt,  isectElimination,  hypothesisEquality,  setElimination,  rename,  intWeakElimination,  natural_numberEquality,  independent_isectElimination,  approximateComputation,  independent_functionElimination,  Error :dependent_pairFormation_alt,  Error :lambdaEquality_alt,  int_eqEquality,  dependent_functionElimination,  Error :isect_memberEquality_alt,  voidElimination,  independent_pairFormation,  Error :functionIsTypeImplies,  Error :inhabitedIsType,  unionElimination,  applyEquality,  instantiate,  because_Cache,  equalityTransitivity,  equalitySymmetry,  applyLambdaEquality,  Error :dependent_set_memberEquality_alt,  Error :productIsType,  hypothesis_subsumption,  addEquality,  baseApply,  closedConclusion,  baseClosed,  intEquality,  imageElimination,  universeEquality,  imageMemberEquality,  Error :equalityIstype,  Error :functionIsType,  sqequalBase,  dependentIntersectionElimination,  dependentIntersection_memberEquality,  functionExtensionality,  setEquality,  cumulativity,  equalityElimination,  minusEquality,  voidEquality,  dependent_set_memberEquality,  isect_memberEquality,  lambdaEquality,  lambdaFormation,  productEquality,  multiplyEquality,  impliesFunctionality,  promote_hyp,  sqequalIntensionalEquality,  dependent_pairFormation,  functionEquality,  isectEquality

Latex:
\mforall{}[g:SimpleGame].  win2(g)  \mequiv{}  win2(sg-normalize(g))



Date html generated: 2019_06_20-PM-00_54_31
Last ObjectModification: 2019_01_02-PM-03_39_29

Theory : co-recursion-2


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