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We are pluralists about logical consequence [1]. We hold that there is more than one sense in which arguments may be deductively valid, that these senses are equally good, and equally deserving of(More)
In his paper “Generalised Ortho Negation” [2] J. Michael Dunn mentions a claim of mine to the effect that there is no condition on ‘perp frames’ equivalent to the holding of double negation(More)
The hallowed path from language to universals has been by way of the correspondence theory of truth: the doctrine that whenever something is true, there must be something in the world which makes it(More)