Who Cites trace consistent rel?
trace_consistent_rel	Def trace_consistent_rel(rho;da;R;r) == i:||r.args||. trace_consistent(rho;da;R;r.args[i])
	Thm* rho:Decl, r:rel(), da:Collection(dec()), R:(LabelLabel). trace_consistent_rel(rho;da;R;r) Prop
trace_consistent	Def trace_consistent(rho;da;R;t) == g:Label. term_mentions_guard(g;t) subtype_rel(({a:([[da]] rho)| (R(g,kind(a))) } List); (rho(lbl_pr( < Trace, g > ))))
	Thm* rho:Decl, t:Term, da:Collection(dec()), R:(LabelLabel). trace_consistent(rho;da;R;t) Prop
decls_mng	Def [[ds]] rho == [[d]] rho for d {d:dec()| d ds }
	Thm* ds:Collection(dec()), rho:Decl. [[ds]] rho Decl
dec	Def dec() == LabelSimpleType
	Thm* dec() Type
decl	Def Decl == LabelType
	Thm* Decl{i} Type{i'}
rel	Def rel() == relname()(Term List)
	Thm* rel() Type
term	Def Term == Tree(ts())
	Thm* Term Type
relname	Def relname() == SimpleType+Label
	Thm* relname() Type
st	Def SimpleType == Tree(Label+Unit)
	Thm* SimpleType Type
ts	Def ts() == Label+Label+Label+Label+Label
	Thm* ts() Type
sigma	Def (d) == l:Labeldecl_type(d;l)
	Thm* d:Decl. (d) Type
lbl	Def Label == {p:Pattern| ground_ptn(p) }
	Thm* Label Type
assert	Def b == if b True else False fi
	Thm* b:. b Prop
col	Def Collection(T) == TProp
	Thm* T:Type{i'}. Collection{i}(T) Type{i'}
int_seg	Def {i..j} == {k:| i k < j }
	Thm* m,n:. {m..n} Type
length	Def ||as|| == Case of as; nil 0 ; a.as' ||as'||+1 (recursive)
	Thm* A:Type, l:A List. ||l||
	Thm* ||nil||
rel_subst	Def rel_subst(as;r) == mk_rel(r.name, map(t.term_subst(as;t);r.args))
	Thm* r:rel(), as:(LabelTerm) List. rel_subst(as;r) rel()
map	Def map(f;as) == Case of as; nil nil ; a.as' [(f(a)) / map(f;as')] (recursive)
	Thm* A,B:Type, f:(AB), l:A List. map(f;l) B List
	Thm* A,B:Type, f:(AB), l:A List. map(f;l) B List
lelt	Def i j < k == ij & j < k
le	Def AB == B < A
	Thm* i,j:. (ij) Prop
not	Def A == A False
	Thm* A:Prop. (A) Prop
rel_args	Def t.args == 2of(t)
	Thm* t:rel(). t.args Term List
select	Def l[i] == hd(nth_tl(i;l))
	Thm* A:Type, l:A List, n:. 0n n < ||l|| l[n] A
subst_mentions_trace	Def subst_mentions_trace(as) == reduce(a,b. mentions_trace(2of(a)) b;false;as)
	Thm* as:(LabelTerm) List. subst_mentions_trace(as)
term_subst	Def term_subst(as;t) == iterate(statevar v- > apply_alist(as;v;v) statevar v'- > apply_alist(as;v;v') funsymbol f- > f freevar f- > f trace(P)- > trace(P) x(y)- > x y over t)
	Thm* t:Term, as:(LabelTerm) List. term_subst(as;t) Term
ground_ptn	Def ground_ptn(p) == Case(p) Case ptn_var(v) = > false Case ptn_pr( < x, y > ) = > ground_ptn(x)ground_ptn(y) Default = > true (recursive)
	Thm* p:Pattern. ground_ptn(p)
ptn	Def Pattern == rec(T.ptn_con(T))
	Thm* Pattern Type
apply_alist	Def apply_alist(as;l;d) == 2of((first p as s.t. 1of(p) = l else < l,d > ))
	Thm* T:Type, as:(LabelT) List, l:Label, d:T. apply_alist(as;l;d) T
pi2	Def 2of(t) == t.2
	Thm* A:Type, B:(AType), p:(a:AB(a)). 2of(p) B(1of(p))
rel_name	Def t.name == 1of(t)
	Thm* t:rel(). t.name relname()
mk_rel	Def mk_rel(name, args) == < name,args >
	Thm* name:relname(), args:Term List. mk_rel(name, args) rel()
nth_tl	Def nth_tl(n;as) == if n0 as else nth_tl(n-1;tl(as)) fi (recursive)
	Thm* A:Type, as:A List, i:. nth_tl(i;as) A List
mentions_trace	Def mentions_trace(t) == iterate(statevar x- > false statevar x'- > false funsymbol x- > false freevar x- > false trace(P)- > true x(y)- > x y over t)
	Thm* t:Term. mentions_trace(t)
term_iter	Def iterate(statevar x- > v(x) statevar x''- > v'(x') funsymbol op- > opr(op) freevar f- > fvar(f) trace(tr)- > trace(tr) a(b)- > comb(a;b) over t) == term_iterate(x.v(x); x'.v'(x'); op.opr(op); f.fvar(f); tr.trace(tr); a,b. comb(a;b); t)
	Thm* A:Type, v,v',opr,fvar,trace:(LabelA), comb:(AAA), t:Term. iterate(statevar x- > v(x) statevar x''- > v'(x') funsymbol op- > opr(op) freevar f- > fvar(f) trace(tr)- > trace(tr) a(b)- > comb(a,b) over t) A
term_mentions_guard	Def term_mentions_guard(g;t) == term_iterate(x.false;x.false;x.false;x.false;x.x = g;x,y. x y;t)
	Thm* t:Term, g:Label. term_mentions_guard(g;t)
dec_mng	Def [[d]] rho == Case(d) Case x : s = > x:[[s]] rho
	Thm* rho:Decl, d:dec(). [[d]] rho Decl
dbase	Def x:y(a) == if a = x y else Top fi
	Thm* x:Label, y:Type. x:y Decl
eq_lbl	Def l1 = l2 == Case(l1) Case ptn_atom(x) = > Case(l2) Case ptn_atom(y) = > x=yAtom Default = > false Case ptn_int(x) = > Case(l2) Case ptn_int(y) = > x=y Default = > false Case ptn_var(x) = > Case(l2) Case ptn_var(y) = > x=yAtom Default = > false Case ptn_pr( < x, y > ) = > Case(l2) Case ptn_pr( < u, v > ) = > x = uy = v Default = > false Default = > false (recursive)
	Thm* l1,l2:Pattern. l1 = l2
case_ptn_var	Def Case ptn_var(x) = > body(x) cont(x1,z) == (x1.inr(x2) = > (x1.inr(x2) = > (x1.inl(x2) = > body(hd([x2 / tl(x1)])) cont(hd(x1),z))([x2 / tl(x1)]) cont(hd(x1),z))([x2 / tl(x1)]) cont(hd(x1),z))([x1])
term_iterate	Def term_iterate(v;p;op;f;tr;a;t) == t_iterate(x.ts_case(x)var(a)= > v(a)var'(b)= > p(b)opr(c)= > op(c)fvar(d)= > f(d)trace(P)= > tr(P)end_ts_case ;a;t)
	Thm* A:Type, v,op,f,p,tr:(LabelA), a:(AAA), t:Term. term_iterate(v;p;op;f;tr;a;t) A
case_ptn_int	Def Case ptn_int(x) = > body(x) cont(x1,z) == (x1.inr(x2) = > (x1.inl(x2) = > body(hd([x2 / tl(x1)])) cont(hd(x1),z))([x2 / tl(x1)]) cont(hd(x1),z))([x1])
ts_case	Def ts_case(x)var(a)= > v(a)var'(b)= > p(b)opr(f)= > op(f)fvar(x)= > f(x)trace(P)= > t(P)end_ts_case == Case(x) Case ts_var(a) = > v(a) Case ts_pvar(b) = > p(b) Case ts_op(f) = > op(f) Case ts_fvar(x) = > f(x) Case ts_trace(P) = > t(P) Default = >
	Thm* A:Type, v,op,f,p,t:(LabelA), x:ts(). ts_case(x)var(a)= > v(a)var'(b)= > p(b)opr(f)= > op(f)fvar(y)= > f(y)trace(P)= > t(P)end_ts_case A
case_ts_trace	Def Case ts_trace(x) = > body(x) cont(x1,z) == (x1.inr(x2) = > (x1.inr(x2) = > (x1.inr(x2) = > (x1.inr(x2) = > body(hd([x2 / tl(x1)])) cont(hd(x1),z))([x2 / tl(x1)]) cont(hd(x1),z))([x2 / tl(x1)]) cont(hd(x1),z))([x2 / tl(x1)]) cont(hd(x1),z))([x1])
case_ts_fvar	Def Case ts_fvar(x) = > body(x) cont(x1,z) == (x1.inr(x2) = > (x1.inr(x2) = > (x1.inr(x2) = > (x1.inl(x2) = > body(hd([x2 / tl(x1)])) cont(hd(x1),z))([x2 / tl(x1)]) cont(hd(x1),z))([x2 / tl(x1)]) cont(hd(x1),z))([x2 / tl(x1)]) cont(hd(x1),z))([x1])
case_ts_op	Def Case ts_op(x) = > body(x) cont(x1,z) == (x1.inr(x2) = > (x1.inr(x2) = > (x1.inl(x2) = > body(hd([x2 / tl(x1)])) cont(hd(x1),z))([x2 / tl(x1)]) cont(hd(x1),z))([x2 / tl(x1)]) cont(hd(x1),z))([x1])
case_ts_pvar	Def Case ts_pvar(x) = > body(x) cont(x1,z) == (x1.inr(x2) = > (x1.inl(x2) = > body(hd([x2 / tl(x1)])) cont(hd(x1),z))([x2 / tl(x1)]) cont(hd(x1),z))([x1])
hd	Def hd(l) == Case of l; nil "?" ; h.t h
	Thm* A:Type, l:A List. ||l||1 hd(l) A
	Thm* A:Type, l:A List. hd(l) A
bor	Def p q == if p true else q fi
	Thm* p,q:. (p q)
find	Def (first x as s.t. P(x) else d) == Case of filter(x.P(x);as); nil d ; a.b a
	Thm* T:Type, P:(T), as:T List, d:T. (first a as s.t. P(a) else d) T
filter	Def filter(P;l) == reduce(a,v. if P(a) [a / v] else v fi;nil;l)
	Thm* T:Type, P:(T), l:T List. filter(P;l) T List
reduce	Def reduce(f;k;as) == Case of as; nil k ; a.as' f(a,reduce(f;k;as')) (recursive)
	Thm* A,B:Type, f:(ABB), k:B, as:A List. reduce(f;k;as) B
tree	Def Tree(E) == rec(T.tree_con(E;T))
	Thm* E:Type. Tree(E) Type
tapp	Def t1 t2 == tree_node( < t1, t2 > )
	Thm* t1,t2:Term. t1 t2 Term
ttrace	Def trace(l) == tree_leaf(ts_trace(l))
	Thm* l:Label. trace(l) Term
tfvar	Def l == tree_leaf(ts_fvar(l))
	Thm* l:Label. l Term
topr	Def f == tree_leaf(ts_op(f))
	Thm* f:Label. f Term
tpvar	Def l' == tree_leaf(ts_pvar(l))
	Thm* l:Label. l' Term
tvar	Def l == tree_leaf(ts_var(l))
	Thm* l:Label. l Term
clbl	Def $x == ptn_atom("$x")
lbl_pair	Def lbl_pr( < x, y > ) == ptn_pr( < x,y > )
	Thm* x,y:Pattern. lbl_pr( < x, y > ) Pattern
	Thm* x,y:Label. lbl_pr( < x, y > ) Label
kind	Def kind(a) == 1of(a)
	Thm* d:Decl, a:(d). kind(a) Label
	Thm* M:sm{i:l}(), a:M.action. kind(a) Label & kind(a) Pattern
st_mng	Def [[s]] rho == t_iterate(st_lift(rho);x,y. xy;s)
	Thm* rho:Decl, s:SimpleType. [[s]] rho Type
t_iterate	Def t_iterate(l;n;t) == Case(t) Case x;y = > n(t_iterate(l;n;x),t_iterate(l;n;y)) Case tree_leaf(x) = > l(x) Default = > True (recursive)
	Thm* E,A:Type, l:(EA), n:(AAA), t:Tree(E). t_iterate(l;n;t) A
case_default	Def Default = > body(value,value) == body
band	Def pq == if p q else false fi
	Thm* p,q:. (pq)
case_lbl_pair	Def Case ptn_pr( < x, y > ) = > body(x;y) cont(x1,z) == InjCase(x1; _. cont(z,z); x2. InjCase(x2; _. cont(z,z); x2@0. InjCase(x2@0; _. cont(z,z); x2@1. x2@1/x3,x2@2. body(x3;x2@2))))
case	Def Case(value) body == body(value,value)
ptn_con	Def ptn_con(T) == Atom++Atom+(TT)
	Thm* T:Type. ptn_con(T) Type
pi1	Def 1of(t) == t.1
	Thm* A:Type, B:(AType), p:(a:AB(a)). 1of(p) A
tl	Def tl(l) == Case of l; nil nil ; h.t t
	Thm* A:Type, l:A List. tl(l) A List
le_int	Def ij == j < i
	Thm* i,j:. (ij)
tree_con	Def tree_con(E;T) == E+(TT)
	Thm* E,T:Type. tree_con(E;T) Type
node	Def tree_node( < x, y > ) == tree_node( < x,y > )
	Thm* E:Type, x,y:Tree(E). tree_node( < x, y > ) Tree(E)
ts_trace	Def ts_trace(x) == inr(inr(inr(inr(x))))
	Thm* x:Label. ts_trace(x) ts()
tree_leaf	Def tree_leaf(x) == inl(x)
	Thm* E,T:Type, x:E. tree_leaf(x) tree_con(E;T)
	Thm* E:Type, x:E. tree_leaf(x) Tree(E)
ts_fvar	Def ts_fvar(x) == inr(inr(inr(inl(x))))
	Thm* x:Label. ts_fvar(x) ts()
ts_op	Def ts_op(x) == inr(inr(inl(x)))
	Thm* x:Label. ts_op(x) ts()
ts_pvar	Def ts_pvar(x) == inr(inl(x))
	Thm* x:Label. ts_pvar(x) ts()
ts_var	Def ts_var(x) == inl(x)
	Thm* x:Label. ts_var(x) ts()
ptn_atom	Def ptn_atom(x) == inl(x)
	Thm* T:Type, x:Atom. ptn_atom(x) ptn_con(T)
	Thm* x:Atom. ptn_atom(x) Pattern
	Thm* x:Atom. ptn_atom(x) Label
ptn_pr	Def ptn_pr(x) == inr(inr(inr(x)))
	Thm* T:Type, x:(TT). ptn_pr(x) ptn_con(T)
	Thm* x,y:Pattern. ptn_pr( < x,y > ) Pattern
col_member	Def x c == c(x)
	Thm* T:Type, x:T, c:Collection(T). x c Prop
dall	Def D(i) for i I(x) == i:I. D(i)(x)
	Thm* I:Type, D:(IDecl). D(i) for i I Decl
decl_type	Def decl_type(d;x) == d(x)
	Thm* dec:Decl, x:Label. decl_type(dec;x) Type
case_inl	Def inl(x) = > body(x) cont(value,contvalue) == InjCase(value; x. body(x); _. cont(contvalue,contvalue))
case_inr	Def inr(x) = > body(x) cont(value,contvalue) == InjCase(value; _. cont(contvalue,contvalue); x. body(x))
lt_int	Def i < j == if i < j true ; false fi
	Thm* i,j:. (i < j)
bnot	Def b == if b false else true fi
	Thm* b:. b
tree_node	Def tree_node(x) == inr(x)
	Thm* E,T:Type, x:(TT). tree_node(x) tree_con(E;T)
	Thm* E:Type, x,y:Tree(E). tree_node( < x,y > ) Tree(E)
eq_atom	Def x=yAtom == if x=yAtomtrue; false fi
	Thm* x,y:Atom. x=yAtom
eq_int	Def i=j == if i=j true ; false fi
	Thm* i,j:. (i=j)
case_ptn_atom	Def Case ptn_atom(x) = > body(x) cont(x1,z) == InjCase(x1; x2. body(x2); _. cont(z,z))
case_mk_dec	Def Case lbl : typ = > body(lbl;typ)(x,z) == x/x2,x1. body(x2;x1)
case_ts_var	Def Case ts_var(x) = > body(x) cont(x1,z) == InjCase(x1; x2. body(x2); _. cont(z,z))
case_tree_leaf	Def Case tree_leaf(x) = > body(x) cont(x1,z) == InjCase(x1; x2. body(x2); _. cont(z,z))
case_node	Def Case x;y = > body(x;y) cont(x1,z) == InjCase(x1; _. cont(z,z); x2. x2/x3,x2@0. body(x3;x2@0))
st_lift	Def st_lift(rho)(x) == InjCase(x; x'. rho(x'); a. Top)
	Thm* rho:(LabelType). st_lift(rho) (Label+Unit)Type
top	Def Top == Void given Void
	Thm* Top Type

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