is mentioned by

Thm* ds:Collection(dec()), rho:Decl, s:{[[ds]] rho}, x:Label , t:SimpleType. t dec_lookup(ds;x) s.x [[t]] rho	[record_select_wf_decls_mng2]
Thm* ds:Collection(dec()), rho:Decl, a:([[ds]] rho). value(a) [[dec_lookup(ds;kind(a))]] rho	[sigma_decls_mng_value]
Thm* da:Collection(dec()), rho:Decl, k:Label, w:[[dec_lookup(da;k)]] rho. < k,w > ([[da]] rho)	[sigma_decls_mng2]
Def term_types(ds;da;de;t) == iterate(statevar x- > dec_lookup(ds;x) statevar x'- > dec_lookup(ds;x) funsymbol op- > < de.fun(op) > freevar x- > da trace(P)- > < lbl_pr( < Trace, P > ) > c1(c2)- > st_app(c1;c2) over t)	[term_types]

In prior sections: mb automata 2

Try larger context: GenAutomata