ds,da:Collection(dec()), de:sig(), rho:Decl, st1:Collection(SimpleType), e1:{1of([[de]] rho)} , s,s':{[[ds]] rho}, a:[[st1]] rho, tr:trace_env([[da]] rho), l:Term List. (i:||l||. trace_consistent(rho;da;tr.proj;l[i])) (ls:SimpleType List, f:reduce(s,m. [[s]] rhom;Prop;ls). ||ls|| = ||l|| & (i:. i < ||l|| ls[i] term_types(ds;st1;de;l[i])) list_accum(x,t.x([[t]] e1 s s' a tr);f;l) Prop)

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1. ds: Collection(dec()) 2. da: Collection(dec()) 3. de: sig() 4. rho: Decl 5. st1: Collection(SimpleType) 6. e1: {1of([[de]] rho)} 7. s: {[[ds]] rho} 8. s': {[[ds]] rho} 9. a: [[st1]] rho 10. tr: trace_env([[da]] rho) l:Term List. (i:||l||. trace_consistent(rho;da;tr.proj;l[i])) (ls:SimpleType List, f:reduce(s,m. [[s]] rhom;Prop;ls). ||ls|| = ||l|| & (i:. i < ||l|| ls[i] term_types(ds;st1;de;l[i])) list_accum(x,t.x([[t]] e1 s s' a tr);f;l) Prop)

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