Re^2: What do you know, and how do you know that you know it?

[thraxil]

in reply to Re: What do you know, and how do you know that you know it?
in thread What do you know, and how do you know that you know it?

I'd like to see a project to prove all known maths in this way, using declared rules of logic and steps small enough to permit computer verification - it boils down to nothing but symbolic manipulation.

it's called the Principia Mathematica. :)