 To assess Dennett’s objection, we must distinguish sharply between mental representations and rules governing the manipulation of mental representations (Fodor 1987: 25). RTT does not require that every such rule be explicitly represented. Some rules may be explicitly represented—we can imagine a reasoning system that explicitly represents deductive inference rules to which it conforms. But the rules need not be explicitly represented. They may merely be implicit in the system’s operations. Only when consultation of a rule figures as a causally efficacious episode in mental activity does RTT require that the rule be explicitly represented. Dennett’s chess machine explicitly represents chess board configurations and perhaps some rules for manipulating chess pieces. It never consults any rule akin to Get the Queen out early. For that reason, we should not expect that the machine explicitly represents this rule even if the rule is in some sense built into the machine’s programming. Similarly, typical thinkers do not consult inference rules when engaging in deductive inference. So RTT does not demand that a typical thinker explicitly represent inference rules, even if she conforms to them and in some sense tacitly believes that she should conform to them.