Nuprl Lemma : hdf-buffer_wf

[A,B:Type]. ∀[X:hdataflow(A;B ⟶ bag(B))]. ∀[bs:bag(B)].  hdf-buffer(X;bs) ∈ hdataflow(A;B) supposing valueall-type(B)


Proof




Definitions occuring in Statement :  hdf-buffer: hdf-buffer(X;bs) hdataflow: hdataflow(A;B) valueall-type: valueall-type(T) uimplies: supposing a uall: [x:A]. B[x] member: t ∈ T function: x:A ⟶ B[x] universe: Type bag: bag(T)
Definitions unfolded in proof :  uall: [x:A]. B[x] member: t ∈ T uimplies: supposing a hdf-buffer: hdf-buffer(X;bs) all: x:A. B[x] implies:  Q so_lambda: λ2x.t[x] so_apply: x[s] callbyvalueall: callbyvalueall has-value: (a)↓ has-valueall: has-valueall(a) bool: 𝔹 unit: Unit it: btrue: tt ifthenelse: if then else fi  bfalse: ff uiff: uiff(P;Q) and: P ∧ Q exists: x:A. B[x] prop: or: P ∨ Q sq_type: SQType(T) guard: {T} bnot: ¬bb assert: b false: False not: ¬A so_lambda: λ2y.t[x; y] so_apply: x[s1;s2]

Latex:
\mforall{}[A,B:Type].  \mforall{}[X:hdataflow(A;B  {}\mrightarrow{}  bag(B))].  \mforall{}[bs:bag(B)].
    hdf-buffer(X;bs)  \mmember{}  hdataflow(A;B)  supposing  valueall-type(B)



Date html generated: 2016_05_16-AM-10_40_00
Last ObjectModification: 2016_01_17-AM-11_13_07

Theory : halting!dataflow


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