fact: Definition _monotone12 (gf: rel12 T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 -> rel12 T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11) := forall r r'(LE: r <12= r'), gf r <12== gf r'.
imports: Program.Basics Paco(paconotation_internal paco_internal pacotac_internal)