अनेनान्येन च इति समुच्चयः ॥ कZ_०९.७.७६ ॥
anenānyena ca iti samuccayaḥ
“用此法并且也用他法”——这称为合并/并用(samuccaya)。
Vikalpa is choosing one among alternatives; samuccaya is applying two or more instruments together as a coordinated package.