Very highly recommended: Logic: a Very Short Introduction [at amazon.co.uk] is a quick and accessible starting point, with examples and counter-arguments, to the world of formal logic. I've decided to get out of my armchair and start learning about this stuff.
Very highly recommended: Logic: a Very Short Introduction [at amazon.co.uk] is a quick and accessible starting point, with examples and counter-arguments, to the world of formal logic. I've decided to get out of my armchair and start learning about this stuff.