Nuprl Lemma : l_tree_node?_wf

∀[L,T:Type]. ∀[v:l_tree(L;T)].  (l_tree_node?(v) ∈ 𝔹)


Proof




Definitions occuring in Statement :  l_tree_node?: l_tree_node?(v),  l_tree: l_tree(L;T),  bool: 𝔹,  uall: ∀[x:A]. B[x],  member: t ∈ T,  universe: Type
Lemmas :  l_tree-ext,  eq_atom_wf,  bool_wf,  eqtt_to_assert,  assert_of_eq_atom,  subtype_base_sq,  atom_subtype_base,  bfalse_wf,  eqff_to_assert,  equal_wf,  bool_cases_sqequal,  bool_subtype_base,  assert-bnot,  neg_assert_of_eq_atom,  btrue_wf,  l_tree_wf
\mforall{}[L,T:Type].  \mforall{}[v:l\_tree(L;T)].    (l\_tree\_node?(v)  \mmember{}  \mBbbB{})



Date html generated: 2015_07_17-AM-07_41_33
Last ObjectModification: 2015_01_27-AM-09_31_02

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