 The Mohists treat this statement as admissible, thus classifying it under the general kind associated with  Form B.  This is “comparing expressions and jointly proceeding”, but the Mohists’ increasing sensitivity to semantic nuances led them to admonish caution about drawing inferences merely on the basis of form. Some inferences “proceed”, others don’t, regardless of obvious parallelisms. As a result, they appropriated individual cases in one way or another depending on how the semantics of their terms played out in combination. On the other hand, this careful attention to individual cases led them to a discovery of intensional contexts, arguably the most original contribution of the Mohists’ studies of language.