Nuprl Lemma : new_23_sig_validity
∀[Cmd:ValueAllType]. ∀[eq:EqDecider(Cmd)]. ∀[reps,clients:bag(Id)]. ∀[coeff:{2...}]. ∀[flrs:ℕ].
∀[propose,notify:Atom List]. ∀[slots:set-sig{i:l}(ℤ)]. ∀[f:new_23_sig_headers_type{i:l}(Cmd;notify;propose)].
∀[es:EO+(Message(f))].
  (eo-msg-interface-constraint(es;new_23_sig_main();new_23_sig_headers_internal();f)
  
⇒ for every p1 in new_23_sig_decided'base(Cmd;notify;propose;f) there is an
     earlier event  with info=m such that
     (msg-header(m) = propose ∈ Name) ∧ (p1 = msg-body(m) ∈ (ℤ × Cmd)))
Proof
Definitions occuring in Statement : 
new_23_sig_headers_internal: new_23_sig_headers_internal()
, 
new_23_sig_main: new_23_sig_main()
, 
new_23_sig_decided'base: new_23_sig_decided'base(Cmd;notify;propose;f)
, 
new_23_sig_headers_type: new_23_sig_headers_type{i:l}(Cmd;notify;propose)
, 
set-sig: set-sig{i:l}(Item)
, 
eo-msg-interface-constraint: eo-msg-interface-constraint(es;X;hdrs;f)
, 
msg-body: msg-body(msg)
, 
msg-header: msg-header(m)
, 
Message: Message(f)
, 
causal-class-relation: causal-class-relation, 
event-ordering+: EO+(Info)
, 
Id: Id
, 
name: Name
, 
list: T List
, 
deq: EqDecider(T)
, 
int_upper: {i...}
, 
nat: ℕ
, 
vatype: ValueAllType
, 
uall: ∀[x:A]. B[x]
, 
implies: P 
⇒ Q
, 
and: P ∧ Q
, 
product: x:A × B[x]
, 
natural_number: $n
, 
int: ℤ
, 
atom: Atom
, 
equal: s = t ∈ T
, 
bag: bag(T)
Definitions unfolded in proof : 
vatype: ValueAllType
, 
uall: ∀[x:A]. B[x]
, 
implies: P 
⇒ Q
, 
member: t ∈ T
, 
new_23_sig_headers_type: new_23_sig_headers_type{i:l}(Cmd;notify;propose)
, 
name: Name
, 
subtype_rel: A ⊆r B
, 
prop: ℙ
, 
and: P ∧ Q
, 
listp: A List+
, 
sq_stable: SqStable(P)
, 
l_all: (∀x∈L.P[x])
, 
all: ∀x:A. B[x]
, 
so_lambda: λ2x.t[x]
, 
so_apply: x[s]
, 
iff: P 
⇐⇒ Q
, 
new_23_sig_headers: new_23_sig_headers(notify;propose)
, 
rev_implies: P 
⇐ Q
, 
guard: {T}
, 
or: P ∨ Q
, 
uimplies: b supposing a
, 
new_23_sig_headers_fun: new_23_sig_headers_fun(Cmd;notify;propose)
, 
bool: 𝔹
, 
unit: Unit
, 
it: ⋅
, 
btrue: tt
, 
uiff: uiff(P;Q)
, 
ifthenelse: if b then t else f fi 
, 
cand: A c∧ B
, 
new_23_sig_headers_no_rep: new_23_sig_headers_no_rep(notify;propose)
, 
squash: ↓T
, 
no_repeats: no_repeats(T;l)
, 
nat: ℕ
, 
le: A ≤ B
, 
less_than': less_than'(a;b)
, 
false: False
, 
not: ¬A
, 
length: ||as||
, 
list_ind: list_ind, 
cons: [a / b]
, 
nil: []
, 
less_than: a < b
, 
true: True
, 
sq_type: SQType(T)
, 
int_upper: {i...}
, 
ge: i ≥ j 
, 
satisfiable_int_formula: satisfiable_int_formula(fmla)
, 
exists: ∃x:A. B[x]
, 
top: Top
, 
select: L[n]
, 
subtract: n - m
, 
bfalse: ff
, 
bnot: ¬bb
, 
assert: ↑b
, 
name_eq: name_eq(x;y)
, 
name-deq: NameDeq
, 
list-deq: list-deq(eq)
, 
band: p ∧b q
, 
atom-deq: AtomDeq
, 
eq_atom: x =a y
, 
null: null(as)
, 
causal-class-relation: causal-class-relation, 
new_23_sig_propose'base: new_23_sig_propose'base(Cmd;notify;propose;f)
, 
encodes-msg-type: hdr encodes T
, 
es-header: header(e)
, 
es-info-body: msgval(e)
, 
msg-type: msg-type(msg;f)
, 
strongwellfounded: SWellFounded(R[x; y])
, 
int_seg: {i..j-}
, 
lelt: i ≤ j < k
, 
decidable: Dec(P)
, 
eo-msg-interface-constraint: eo-msg-interface-constraint(es;X;hdrs;f)
, 
new_23_sig_decided'base: new_23_sig_decided'base(Cmd;notify;propose;f)
, 
new_23_sig_headers_internal: new_23_sig_headers_internal()
, 
make-msg-interface: make-msg-interface(i;l;m)
, 
new_23_sig_vote'base: new_23_sig_vote'base(Cmd;notify;propose;f)
, 
new_23_sig_retry'base: new_23_sig_retry'base(Cmd;notify;propose;f)
, 
pi1: fst(t)
, 
pi2: snd(t)
, 
has-es-info-type: has-es-info-type(es;e;f;T)
, 
rev_uimplies: rev_uimplies(P;Q)
, 
so_lambda: λ2x y.t[x; y]
, 
so_apply: x[s1;s2]
, 
l_member: (x ∈ l)
Latex:
\mforall{}[Cmd:ValueAllType].  \mforall{}[eq:EqDecider(Cmd)].  \mforall{}[reps,clients:bag(Id)].  \mforall{}[coeff:\{2...\}].  \mforall{}[flrs:\mBbbN{}].
\mforall{}[propose,notify:Atom  List].  \mforall{}[slots:set-sig\{i:l\}(\mBbbZ{})].
\mforall{}[f:new\_23\_sig\_headers\_type\{i:l\}(Cmd;notify;propose)].  \mforall{}[es:EO+(Message(f))].
    (eo-msg-interface-constraint(es;new\_23\_sig\_main();new\_23\_sig\_headers\_internal();f)
    {}\mRightarrow{}  for  every  p1  in  new\_23\_sig\_decided'base(Cmd;notify;propose;f)  there  is  an
          earlier  event    with  info=m  such  that
          (msg-header(m)  =  propose)  \mwedge{}  (p1  =  msg-body(m)))
Date html generated:
2016_05_17-PM-02_30_25
Last ObjectModification:
2016_05_13-AM-04_26_18
Theory : 2!3!consensus!with!signatures
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