is mentioned by

Thm* ds:Collection(dec()), rho:Decl, a:([[ds]] rho), x:Label. mk_dec(kind(a), x) ds value(a) rho(x)	[sigma_decls_mng_value2]
Thm* ds:Collection(dec()), rho:Decl, a:([[ds]] rho). value(a) [[dec_lookup(ds;kind(a))]] rho	[sigma_decls_mng_value]

In prior sections: mb state machine

Try larger context: GenAutomata