Fear of fish footballer Paolo Di Canio describes finding that his then team-mate, Peter Grant suffered from ichthyophobia. During a practical joke, Di Canio describes Grant's fearful reaction after finding a salmon head in his bed. Grant told "The Independent" that item in his bed was in fact a "shark's head" and "to say I got a fright when I put my feet between the sheets is an understatement." The term "ichthyophobia" comes from the Greek ἰχθῦς - "ichthus", meaning "fish" and φόβος - "phobos", "fear". "Galeophobia" comes from the Greek γαλεός - "galeos", "small shark". Fear of fish Fear of fish or
Irrational number Consider ; if this is rational, then take "a" = "b" = . Otherwise, take "a" to be the irrational number and "b" = . Then "a" = () = = = 2, which is rational. Although the above argument does not decide between the two cases, the Gelfond–Schneider theorem shows that is transcendental, hence irrational. This theorem states that if "a" and "b" are both algebraic numbers, and "a" is not equal to 0 or 1, and "b" is not a rational number, then any value of "a" is a transcendental number (there can be more than one value