Nuprl Lemma : hdf-state1-single-val_wf

∀[A,B,C:Type]. ∀[f:B ⟶ C ⟶ C]. ∀[X:hdataflow(A;B)]. ∀[b:C].
  (hdf-state1-single-val(f;X;b) ∈ hdataflow(A;C)) supposing (hdf-single-valued(X;A;B) and valueall-type(C))


Proof




Definitions occuring in Statement :  hdf-state1-single-val: hdf-state1-single-val(f;X;b),  hdf-single-valued: hdf-single-valued(X;A;B),  hdataflow: hdataflow(A;B),  valueall-type: valueall-type(T),  uimplies: b supposing a,  uall: ∀[x:A]. B[x],  member: t ∈ T,  function: x:A ⟶ B[x],  universe: Type
Definitions unfolded in proof :  uall: ∀[x:A]. B[x],  member: t ∈ T,  uimplies: b supposing a,  hdf-state1-single-val: hdf-state1-single-val(f;X;b),  prop: ℙ,  hdf-ap: X(a),  subtype_rel: A ⊆r B,  ext-eq: A ≡ B,  and: P ∧ Q,  all: ∀x:A. B[x],  implies: P ⇒ Q,  ifthenelse: if b then t else f fi ,  btrue: tt,  so_lambda: λ2x.t[x],  so_apply: x[s],  so_lambda: λ2x y.t[x; y],  so_apply: x[s1;s2],  hdf-run: hdf-run(P),  hdf-single-valued: hdf-single-valued(X;A;B),  iterate-hdataflow: P*(inputs),  list_accum: list_accum,  nil: [],  it: ⋅,  bool: 𝔹,  unit: Unit,  uiff: uiff(P;Q),  bfalse: ff,  exists: ∃x:A. B[x],  or: P ∨ Q,  sq_type: SQType(T),  guard: {T},  bnot: ¬bb,  assert: ↑b,  false: False,  not: ¬A,  callbyvalueall: callbyvalueall,  has-value: (a)↓,  has-valueall: has-valueall(a),  pi1: fst(t),  top: Top,  nat: ℕ,  decidable: Dec(P),  ge: i ≥ j ,  satisfiable_int_formula: satisfiable_int_formula(fmla),  hdf-halt: hdf-halt()

Latex:
\mforall{}[A,B,C:Type].  \mforall{}[f:B  {}\mrightarrow{}  C  {}\mrightarrow{}  C].  \mforall{}[X:hdataflow(A;B)].  \mforall{}[b:C].
    (hdf-state1-single-val(f;X;b)  \mmember{}  hdataflow(A;C))  supposing 
          (hdf-single-valued(X;A;B)  and 
          valueall-type(C))



Date html generated: 2016_05_16-AM-10_40_38
Last ObjectModification: 2016_01_17-AM-11_13_22

Theory : halting!dataflow


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