Abstract

© The Authors 2017. Published by Oxford University Press on behalf of The Analysis Trust. All rights reserved. For Permissions, please email: [email protected] an argument be modally valid just in case, necessarily, if its premises are true, then its conclusion is true. Propositions begins with the assumption that some arguments are modally valid. Chapter 1 – ‘Propositions and Modal Validity’ – argues that the premises and conclusions of modally valid arguments exist necessarily, have their truth conditions essentially, and are the fundamental bearers of truth and falsity. Again, some arguments are modally valid. So there are the premises and conclusions of modally valid arguments. So there are necessarily existing fundamental bearers of truth and falsity that have their truth conditions essentially. I shall call these entities ‘propositions’. So there are propositions.Chapter 1 argues that the premises and conclusions of modally valid arguments are propositions. Chapter...