Nuprl Lemma : DVp_Null-x_wf
∀[v:C_DVALUEp()]. DVp_Null-x(v) ∈ Unit supposing ↑DVp_Null?(v)
Proof
Definitions occuring in Statement :
DVp_Null-x: DVp_Null-x(v),
DVp_Null?: DVp_Null?(v),
C_DVALUEp: C_DVALUEp(),
assert: ↑b,
uimplies: b supposing a,
uall: ∀[x:A]. B[x],
unit: Unit,
member: t ∈ T
Lemmas :
C_DVALUEp-ext,
eq_atom_wf,
bool_wf,
eqtt_to_assert,
assert_of_eq_atom,
subtype_base_sq,
atom_subtype_base,
unit_wf2,
unit_subtype_base,
it_wf,
eqff_to_assert,
equal_wf,
bool_cases_sqequal,
bool_subtype_base,
assert-bnot,
neg_assert_of_eq_atom,
assert_wf,
DVp_Null?_wf,
C_DVALUEp_wf
\mforall{}[v:C\_DVALUEp()]. DVp\_Null-x(v) \mmember{} Unit supposing \muparrow{}DVp\_Null?(v)
Date html generated:
2015_07_17-AM-07_44_24
Last ObjectModification:
2015_01_27-AM-09_45_55
Home
Index