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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