«كل إنسان لم يقم»
Every person failed to stand (on the distributed negative reading).
«لم يقم كل إنسان»
Not every person stood.
The first distributes the negative predicate across the individuals: each person is included under not standing. The second rejects the claim that standing applies to all; it allows some people to have stood.
StructureScope
كل ... لمNegation distributed to each individual
لم ... كلNegation of a universal assertion
These are the technical contrasts developed in the source. In ordinary utterances, pragmatic context may further constrain the intended reading.
«ما جاءني أحد»
No one came to me. In negative context, aḥad extends the denial to all relevant individuals.