Logic covers vast areas of philosophy. It would be unfair to say mind is only a fraction of logic, empirically, the mind is causal. Immanuel Kant says in his 'Critique of Practical Reason' it is a priori and causal. Unfortunately he could not back this argument. Dummet's equation can be cracked by logic, if it is given, in rational terms. Logic given a priori, in empirical application is therefore causal.