إِنْسَانٌ لَمْ يَقُمْ
A person did not stand.
This is not simply interchangeable with «كل إنسان لم يقم». The indefinite subject, its relation to the scope of negation, and whether the construction is analyzed as an indefinite affirmative or indefinite negative proposition matter for its logical force.
The commentary explores analyses in which the expression is about the non-standing of some person or some members. Its predicative form must therefore be identified before deciding exactly what kull changes when introduced.