nnormalize;
nelim x;
nelim y;
- ##[ ##1,10,19,28,37,46,55,64: napply (or_introl (? = ?) (? ≠ ?) …); napply refl_eq
- ##| ##*: napply (or_intror (? = ?) (? ≠ ?) …); nnormalize; #H; napply False_ind; napply (oct_destruct … H)
+ ##[ ##1,10,19,28,37,46,55,64: napply (or2_intro1 (? = ?) (? ≠ ?) …); napply refl_eq
+ ##| ##*: napply (or2_intro2 (? = ?) (? ≠ ?) …); nnormalize; #H; napply False_ind; napply (oct_destruct … H)
##]
nqed.