Mm. This might work for some proofs - Lewis Carroll, as we all know, was a mathematician - but a proof for something you already believe that is conducted via tedious steps is not humorous by anyone's lights. Proving P/=NP is not funny, but proving 2+2=3 is funny.
It's not funny if it's wrong.
The Open Thread posted at the beginning of the month has gotten really, really big, so I've gone ahead and made another one. Post your new discussions here!
This thread is for the discussion of Less Wrong topics that have not appeared in recent posts. If a discussion gets unwieldy, celebrate by turning it into a top-level post.