This raises problems for the intentional realist argument: How is the semantic property of the propositional attitudes causally relevant to the behaviours of the cognitive system?

• 这就给符号计算主义的意向实在论论证带来了问题:命题态度的语义性质如何能够对认知系统的行为具有因果相关性?语义性质的因果效力问题是意向实在论论证的关键所在。