Nuprl Lemma : hdf-compose0_wf
∀[A,B,C:Type]. ∀[f:B ⟶ bag(C)]. ∀[X:hdataflow(A;B)].  hdf-compose0(f;X) ∈ hdataflow(A;C) supposing valueall-type(C)
Proof
Definitions occuring in Statement : 
hdf-compose0: hdf-compose0(f;X), 
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, 
bag: bag(T)
Definitions unfolded in proof : 
uall: ∀[x:A]. B[x], 
member: t ∈ T, 
uimplies: b supposing a, 
hdf-compose0: hdf-compose0(f;X), 
so_lambda: λ2x.t[x], 
so_apply: x[s], 
so_lambda: λ2x y.t[x; y], 
all: ∀x:A. B[x], 
implies: P ⇒ Q, 
callbyvalueall: callbyvalueall, 
has-value: (a)↓, 
has-valueall: has-valueall(a), 
so_apply: x[s1;s2]
Latex:
\mforall{}[A,B,C:Type].  \mforall{}[f:B  {}\mrightarrow{}  bag(C)].  \mforall{}[X:hdataflow(A;B)].
    hdf-compose0(f;X)  \mmember{}  hdataflow(A;C)  supposing  valueall-type(C)
Date html generated:
2016_05_16-AM-10_39_16
Last ObjectModification:
2015_12_28-PM-07_44_11
Theory : halting!dataflow
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