प्रत्नपूर्वविश्वेमात्थाल् छन्दसि

Operational rule vidhi

In the छन्दस् (Vedas), the affix थाल् comes in the sense of 'like this' after 1. प्रत्न 2. पूर्व 3. विश्व and 4. इम (इदम्).

Word by word (padaccheda)

Left context प्रत्न- पूर्व- विश्व- इमात् pañcamī · ekavacanaSubstitute / term था prathamā · ekavacanaRight context छन्दसि saptamī · ekavacana

Left context Pañcamī (5th case): "after X", the operation applies to what follows (1.1.67 तस्मादित्युत्तरस्य). Also used for limits and sources.
Substitute / term Prathamā (1st case): in operational rules, the substitute or the thing introduced; in definitions, the term or its referent.
Right context Saptamī (7th case): "when X follows", the operation applies to what precedes (1.1.66 तस्मिन्निति निर्दिष्टे पूर्वस्य). Also a condition or domain ("in the sense of").

Dotted words are technical terms. Hover or tap one to see its card.

Pink letters are it-markers (anubandhas), tags dropped by 1.3.9. Hover or tap one for the rule that marks it, or try the it-letter finder.

प्रत्न-पूर्व-विश्व-इमात् थाल् छन्दसि

Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.

In the छन्दस् (Vedas), the affix थाल् comes in the sense of 'like this' after 1. प्रत्न 2. पूर्व 3. विश्व and 4. इम (इदम्).
Thus:-

तं प्र॒त्नथा॑ पूर्वथा॑ विश्वथेमथा॑ ज्येष्ठताति॑ बर्हिष॑दं स्व॒र्विदं ॥

(Rig Veda V. 44.1). 'Him (Indra), as the ancients, as the predecessors, as all creatures, and as these living men have worshipped &c'.

Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.