satkāryaniṣedhādeva sāmarthyād asatkāryam iti siddham eva sadasatoranyonyaparihārasthitalakṣaṇatvena prakārāntarāsambhavāt /
From the very denial of [the theory of] satkārya [it] follows logically that [the effect is] asatkārya, since "existent" and "non-existent" are mutually exclusive characteristics and thus no other alternative is possible.