vu que c’est de saison: Joyeuses fêtes de fin d’année et tous mes voeux pour 2018!
PS: Possible answers to the question from my previous post:
How many mathematicians does it take to screw in a light bulb?
A1: None. A mathematician can’t screw in a light bulb, but he can easily prove the work can be done.
A2: Just one, once you’ve managed to present the problem in terms he is familiar with.
A3: One, who gives it to six Californians, thereby reducing it to an earlier riddle.
A4: 3.9967 (after six iterations).
A5: In which group is the light bulb?