Nuprl Lemma : bm_T-key_wf

[T,Key:Type]. ∀[v:binary_map(T;Key)].  bm_T-key(v) ∈ Key supposing ↑bm_T?(v)


Proof




Definitions occuring in Statement :  bm_T-key: bm_T-key(v) bm_T?: bm_T?(v) binary_map: binary_map(T;Key) assert: b uimplies: supposing a uall: [x:A]. B[x] member: t ∈ T universe: Type
Definitions unfolded in proof :  uall: [x:A]. B[x] uimplies: supposing a member: t ∈ T ext-eq: A ≡ B and: P ∧ Q subtype_rel: A ⊆B all: x:A. B[x] implies:  Q bool: 𝔹 unit: Unit it: btrue: tt uiff: uiff(P;Q) sq_type: SQType(T) guard: {T} eq_atom: =a y ifthenelse: if then else fi  bm_T?: bm_T?(v) pi1: fst(t) assert: b bfalse: ff false: False exists: x:A. B[x] prop: or: P ∨ Q bnot: ¬bb bm_T-key: bm_T-key(v) pi2: snd(t)

Latex:
\mforall{}[T,Key:Type].  \mforall{}[v:binary\_map(T;Key)].    bm\_T-key(v)  \mmember{}  Key  supposing  \muparrow{}bm\_T?(v)



Date html generated: 2016_05_17-PM-01_37_24
Last ObjectModification: 2015_12_28-PM-08_11_01

Theory : binary-map


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