Instance paco0_2_0_inst  (gf_0 gf_1 : rel0->_) r_0 r_1 : paco_class (paco0_2_0 gf_0 gf_1 r_0 r_1) :=
{ pacoacc    := paco0_2_0_acc gf_0 gf_1;
  pacomult   := paco0_2_0_mult gf_0 gf_1;
  pacofold   := paco0_2_0_fold gf_0 gf_1;
  pacounfold := paco0_2_0_unfold gf_0 gf_1 }.Instance paco0_2_1_inst  (gf_0 gf_1 : rel0->_) r_0 r_1 : paco_class (paco0_2_1 gf_0 gf_1 r_0 r_1) :=
{ pacoacc    := paco0_2_1_acc gf_0 gf_1;
  pacomult   := paco0_2_1_mult gf_0 gf_1;
  pacofold   := paco0_2_1_fold gf_0 gf_1;
  pacounfold := paco0_2_1_unfold gf_0 gf_1 }.Definition monotone0_3 (gf: rel0 -> rel0 -> rel0 -> rel0) :=
  forall r_0 r_1 r_2 r'_0 r'_1 r'_2 (IN: gf r_0 r_1 r_2) (LE_0: r_0 <0= r'_0)(LE_1: r_1 <0= r'_1)(LE_2: r_2 <0= r'_2), gf r'_0 r'_1 r'_2.

Theorem paco0_3_1_acc: forall l r_0 r_1 r_2 (OBG: forall rr (INC: r_1 <0= rr) (CIH: l <_paco_0= rr), l <_paco_0= paco0_3_1 gf_0 gf_1 gf_2 r_0 rr r_2), l <0= paco0_3_1 gf_0 gf_1 gf_2 r_0 r_1 r_2.