Nuprl Lemma : DVp_Null?_wf

[v:C_DVALUEp()]. (DVp_Null?(v) ∈ 𝔹)


Proof




Definitions occuring in Statement :  DVp_Null?: DVp_Null?(v) C_DVALUEp: C_DVALUEp() bool: 𝔹 uall: [x:A]. B[x] 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 btrue_wf eqff_to_assert equal_wf bool_cases_sqequal bool_subtype_base assert-bnot neg_assert_of_eq_atom bfalse_wf C_DVALUEp_wf
\mforall{}[v:C\_DVALUEp()].  (DVp\_Null?(v)  \mmember{}  \mBbbB{})



Date html generated: 2015_07_17-AM-07_44_22
Last ObjectModification: 2015_01_27-AM-09_45_50

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