5/5 lets go baby !

This one took a while to understand. The way I understood it was:

All A belong to B.

Most B belong to C.

Therefore, some A belong to C.

This argument is invalid because the conclusion cannot be logically proven. We do not know whether any members of A are included among the majority of B that belong to C. It is possible that some A belong to C, but it is also possible that every member of A falls within the minority of B that does not belong to C.

Therefore, “some A belong to C” may be true, but the premises do not establish that it must be true. The overlap is possible, not guaranteed.