2 puzzles from Jean Buridan, each explained in a minute and credited to the original work. Free on Savvy.
A traveler wants to cross a bridge guarded by an armed man, who warns: "Swear an oath. If it's true, you may pass; if it's false, I'll throw you into the water." The traveler swear…
— Jean Buridan, Sophismata
A traveller wants to cross a bridge guarded by a logician, who warns: 'If what you say next is true, I'll let you pass. If it's false, I'll throw you in the water.' The traveller r…
— Jean Buridan, Sophismata