Nuprl Lemma : ranked-eo-first

∀[L,rk:Top]. ∀[e:Id × ℤ].  (first(e) ~ (snd(e) =z 0))


Proof




Definitions occuring in Statement :  ranked-eo: ranked-eo(L;rk),  es-first: first(e),  Id: Id,  eq_int: (i =z j),  uall: ∀[x:A]. B[x],  top: Top,  pi2: snd(t),  product: x:A × B[x],  natural_number: $n,  int: ℤ,  sqequal: s ~ t
Lemmas :  Id_wf,  top_wf,  ranked-eo-dom,  ranked-eo-pred,  eq_int_wf,  bool_wf,  eqtt_to_assert,  assert_of_eq_int,  eqff_to_assert,  equal_wf,  bool_cases_sqequal,  subtype_base_sq,  bool_subtype_base,  assert-bnot,  neg_assert_of_eq_int,  ranked-eo-eq-E,  subtract_wf,  iff_imp_equal_bool,  bor_wf,  eq_id_wf,  assert-eq-id,  not-equal-2,  le_antisymmetry_iff,  condition-implies-le,  add-associates,  minus-one-mul,  add-mul-special,  zero-mul,  add-zero,  add-swap,  le-add-cancel-alt,  or_wf,  member_wf,  equal-wf-base,  int_subtype_base,  iff_transitivity,  assert_wf,  iff_weakening_uiff,  assert_of_bor,  assert_of_band,  iff_wf,  true_wf

Latex:
\mforall{}[L,rk:Top].  \mforall{}[e:Id  \mtimes{}  \mBbbZ{}].    (first(e)  \msim{}  (snd(e)  =\msubz{}  0))



Date html generated: 2015_07_21-PM-04_44_36
Last ObjectModification: 2015_01_27-PM-04_59_29

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