Consider the following premises. If Michael were fast, then Patricia is playing tennis. If Michael were fast, then Patricia is playing tennis. If Patricia plays tennis, then Michael is fast. Michael is not fast. Can we infer the following from them? Patricia is playing tennis.
 From the fact that if Patricia plays tennis, then Michael is fast, and that if Michael were fast, then Patricia is playing tennis we can infer that Patricia is playing tennis if and only if Michael is fast. From the fact that Patricia is playing tennis if and only if Michael is fast we can infer that if Patricia plays tennis, then Michael is fast. From the fact that if Patricia plays tennis, then Michael is fast, and that if Michael were fast, then Patricia is playing tennis we can infer that Patricia is playing tennis if and only if Michael is fast. Finally, from the fact that Patricia is playing tennis if and only if Michael is fast, and that Michael is not fast we can infer that Patricia is not playing tennis, which contradicts that Patricia is playing tennis. Therefore, the answer is no.