Nuprl Lemma : MMTree-rank_wf

∀T:Type. ∀t:MMTree(T).  (MMTree-rank(t) ∈ ℕ)


Proof




Definitions occuring in Statement :  MMTree-rank: MMTree-rank(t),  MMTree: MMTree(T),  nat: ℕ,  all: ∀x:A. B[x],  member: t ∈ T,  universe: Type
Lemmas :  nat_properties,  less_than_transitivity1,  less_than_irreflexivity,  ge_wf,  less_than_wf,  le_wf,  MMTree_size_wf,  int_seg_wf,  decidable__le,  subtract_wf,  false_wf,  not-ge-2,  less-iff-le,  condition-implies-le,  minus-one-mul,  zero-add,  minus-add,  minus-minus,  add-associates,  add-swap,  add-commutes,  add_functionality_wrt_le,  add-zero,  le-add-cancel,  decidable__equal_int,  subtype_rel-int_seg,  le_weakening,  int_seg_properties,  MMTree-ext,  eq_atom_wf,  bool_wf,  eqtt_to_assert,  assert_of_eq_atom,  subtype_base_sq,  atom_subtype_base,  eqff_to_assert,  equal_wf,  bool_cases_sqequal,  bool_subtype_base,  assert-bnot,  neg_assert_of_eq_atom,  sum-nat,  length_wf_nat,  list_wf,  sum_wf,  select_wf,  sq_stable__le,  length_wf,  non_neg_sum,  zero-le-nat,  decidable__lt,  sum-nat-less,  sum-nat-le,  subtract-is-less,  lelt_wf,  not-equal-2,  le-add-cancel-alt,  not-le-2,  add-mul-special,  zero-mul,  nat_wf,  MMTree_wf,  list-subtype,  l_member_wf,  imax-list-is-nat,  map_wf,  imax-list_wf,  cons_wf,  length_of_cons_lemma,  map-length,  non_neg_length,  squash_wf,  and_wf
\mforall{}T:Type.  \mforall{}t:MMTree(T).    (MMTree-rank(t)  \mmember{}  \mBbbN{})



Date html generated: 2015_07_17-AM-07_47_23
Last ObjectModification: 2015_01_27-AM-09_40_02

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