Logic Enthusiast T-Shirts

'All cats have four legs. I have four legs. I am a cat.'

Flowcharts.

"All dogs have four legs. All tables have four legs. All dogs are tables."

Fly Logic

Your logic is flaccid and your data suppositional, dawg!

A Major Refresher Course is in Order.

'Not guilty by reason of millions of years of evolutionary selection for aggressive behavior, Your Honor.'

"Can a page with writing on it really be a blank page?"

"Faith" is the sound your mouth makes when your brain is not strong enough to use logic.

"Leibniz, Boole and Gödel worked with logic. I work with logic. I am Leibniz, Boole and Gödel."

"She was lying when she said she said she was telling the truth... but she was telling the truth when she said she was lying."

"The Bible only appears fictional when you apply unfair amounts of logic."

"Actually, that old axiom was based on faulty mathematics! I discovered that when you correct this ration, two wrongs DO make a right!"

"He finds coping with the doorstep rejection quite hard."

"That's funny. . . it's on the other side on the other side."

"If homosexuality is inherited, shouldn't it have died out by now?"

Ludwig Wittgenstein

'Why not put it in position first then fill it with water?'

Sudoku: 'Before...after'.

"The thing with Sudoku is I can never find the right words to fit."

Logic 'Mens' and 'Womens'

Annual Mensa Convention: 'Ok, who's the genius who forgot to send out the invitations?'

Professor of Fuzzy Logic.

'Just a minute while your father figures this out.'

'You may now turn over your paper and begin.' - 'Sir!' - 'Yes?' - 'What is it?' - 'I think Train 'A' and Train 'B' might be going to crash!'

Clerk in tax office filing between fact and fiction.

I think I have a 45-45 chance of passing my math class.'

With Aristotle, it's either true or false -- He hates it when you say "whatever."

Wow! How did you think of that? Circular reasoning.

Doggie Syllogisms. Or to put it another way

"I've been racking my brain for hours and I still can't get today's Sudoku."

"All cats have four legs. I have four legs. Therefore, I am a cat."

'Einstein, the children are getting too complex for me.'

'Never mind inspiration. I need background material on atomic physics.'

Thinking Gears