On Thu, Nov 26, 2015 at 6:20 PM, MJ Williams < matthewjwilliams101@gmail.com> wrote:

therefore f ( g a ) = g ( f a ) . (transitivity)

If you're interested in getting a firm grasp of airtight proofs -- with a view toward Haskell (and Agda and Idris) mastery -- you might want to pick and choose your way through the web-based proof exercises here:

https://www.coursera.org/course/intrologic

This is a course firmly in the American analytic philosophy tradition, so Logic here is Symbolic Logic. Bonus: the course keeps AI and Machine Learning applications in the backdrop.

It's unfortunate that it's some kind of well-kept secret.

Those who don't need it -- because they've obtained the knowledge elsewhere -- won't know about it. And those who do want that knowledge also won't know about it.

Did I mention the exercises are web-based? Yes, you get instantaneous feedback on whether you've got a correct proof or not.

-- Kim-Ee
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