A liar who always lies says "All my hats are green."

Re:A liar who always lies says "All my hats are green." by dllthomas on Monday December 09, 2024 @01:49PM (#42369173)

I think the puzzle is better if the person "only speaks falsehoods" than if they "always lie" - depending on context, a true statement can be a lie.

[ Parent | on HN ]

Re:A liar who always lies says "All my hats are green." by aftbit on Monday December 09, 2024 @01:54PM (#42369224)

This is called out in the article:

>Note: this question was originally set in a maths exam, so the answer assumes some basic assumptions about formal logic. A liar is someone who only says false statements.

[ Parent | on HN ]

Re:A liar who always lies says "All my hats are green." by dllthomas on Monday December 09, 2024 @07:55PM (#42372437)

Yeah, my comment was just a suggestion that that wording be imported into the question, rather than living in a clarification.

[ Parent | on HN ]