Prakarana Panchika, a commentary on the siddhantas of Prabhakara Guru school of Mimamsa defines Arthaapatti as follows <blockquote>अर्थापत्तिलक्षणम्। "विना कल्पनयाऽर्थेन दृष्टेनाऽनुपपन्नताम्। नयताऽदृष्टमर्थं या साऽर्थापत्तिस्तु कल्पना"।। 1 ।। इति।<ref>Prakarana Panchika by Shalikanatha Mishra (Prabhakara Guru's School) [https://sa.wikisource.org/wiki/%E0%A4%AA%E0%A5%8D%E0%A4%B0%E0%A4%95%E0%A4%B0%E0%A4%A3%E0%A4%AA%E0%A4%9E%E0%A5%8D%E0%A4%9A%E0%A4%BF%E0%A4%95%E0%A4%BE#%E0%A4%85%E0%A4%B0%E0%A5%8D%E0%A4%A5%E0%A4%BE%E0%A4%AA%E0%A4%A4%E0%A5%8D%E0%A4%A4%E0%A4%BF%E0%A4%AA%E0%A4%B0%E0%A4%BF%E0%A4%9A%E0%A5%8D%E0%A4%9B%E0%A5%87%E0%A4%A6:%E0%A5%A4 Arthapatti Parichedha]</ref></blockquote>When a given or perceived fact cannot be explained without some other fact we have to presuppose or postulate the existence of this other fact even though we do not perceive it. What is presumed is said to be a distinct source of knowledge. Thus it a process of explaining an otherwise inexplicable phenomenon by the explanation of the fact itself is called Arthapatti.
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Prakarana Panchika, a commentary on the siddhantas of Prabhakara Guru school of Mimamsa defines Arthaapatti as follows <blockquote>अर्थापत्तिलक्षणम्। "विना कल्पनयाऽर्थेन दृष्टेनाऽनुपपन्नताम्। नयताऽदृष्टमर्थं या साऽर्थापत्तिस्तु कल्पना"।। 1 ।। इति।<ref>Prakarana Panchika by Shalikanatha Mishra (Prabhakara Guru's School) [https://sa.wikisource.org/wiki/%E0%A4%AA%E0%A5%8D%E0%A4%B0%E0%A4%95%E0%A4%B0%E0%A4%A3%E0%A4%AA%E0%A4%9E%E0%A5%8D%E0%A4%9A%E0%A4%BF%E0%A4%95%E0%A4%BE#%E0%A4%85%E0%A4%B0%E0%A5%8D%E0%A4%A5%E0%A4%BE%E0%A4%AA%E0%A4%A4%E0%A5%8D%E0%A4%A4%E0%A4%BF%E0%A4%AA%E0%A4%B0%E0%A4%BF%E0%A4%9A%E0%A5%8D%E0%A4%9B%E0%A5%87%E0%A4%A6:%E0%A5%A4 Arthapatti Parichedha]</ref></blockquote>When a given or perceived fact cannot be explained without some other fact we have to presuppose or postulate the existence of this other fact even though we do not perceive it. What is presumed is said to be a distinct source of knowledge. Thus it a process of explaining an otherwise inexplicable phenomenon by the explanation of the fact itself is called Arthapatti.<ref>Shabara [https://archive.org/details/ShabaraBhasyaTrByGanganathJha/page/n29 Bhashya] </ref>