Wasn't there a single page PhD thesis that was a single sentence describing a counter-example for some long-standing conjecture? I realize it's vague (to put i

Wasn't there a single page PhD thesis that was a single sentence describing a counter-example for some long-standing conjecture? I realize it's vague (to put it mildly), but it was 20-something years since it came up in the math class in the Uni. Edit - Haha, found it! It was in Littlewood's Miscellany - Picard's Theorem [1]. [1] https://books.google.ch/books?id=MjVgeT7Laf8C&pg=PA40&lpg=PA40&dq=An+integral+function+never+0+or+1+is+a+constant&source=bl&ots=ov_dqTGKL1&sig=4yqDoeXwS_JKjcb8NqdpnHqQI-o&hl=en&sa=X&ved=0ahUKEwjv7Y66iarJAhXJaRQKHS-2AN0Q6AEIGzAA#v=onepage&f=false https://books.google.ch/books?id=MjVgeT7Laf8C&pg=PA40&lpg=PA...