Some A are not non-B. (T) Subcontrary
A) All A are non-B. (Und.)
B) No A are non-B. (Und.)
C) Some A are non-B. (Und.)
D) Some A are B. (F)
E) Some A are non-B. (F)

Question

Quizplus · Accepted Answer

If the statement "Some A are not non-B" is true, then it means that there is at least one A that is not in the category of non-B. This leaves three possibilities for the relationship between A and non-B: 
1) All A are non-B (which contradicts the given statement) 
2) No A are non-B (also contradicts the given statement) 
3) Some A are non-B (could be true). 
Therefore, C is the only option that is consistent with the given statement. 
Option D is false because it asserts that there are some A that are B, which is not necessarily true based on the given statement. 
Option E is false because it asserts that there are some A that are non-B, which is not necessarily true based on the given statement.

Some a Are Not Non-B. (T) Subcontrary