Objection to the conclusion: equivocation between material cause and efficient cause in the premises vs. conclusion. Response: both premises and conclusion refer to efficient causation.

Material cause = the stuff something is made from (Michelangelo's marble). Efficient cause = the agent that brings it about. The objection claims Premise 1 uses "cause" as material but the conclusion uses it as efficient. Braxton: in both cases, we mean efficient cause — no equivocation.