When is tatmīm the better analysis of “bi-diqqatin” in “faḥaṣa al-muhandisu al-jisra bi-diqqatin”?

Supplementary Practice 12: Rhetorical Evidence, Competing Analyses and Reasoned Revision

• When the precision of inspection is a useful additional detail
• When it necessarily negates an unwanted inference
• When the first statement has no meaning
• When all the words are pleonastic