Letter: A new paradox?

David Stansfield London E3
Sunday 06 September 1998 18:02 EDT
Comments

Your support helps us to tell the story

From reproductive rights to climate change to Big Tech, The Independent is on the ground when the story is developing. Whether it's investigating the financials of Elon Musk's pro-Trump PAC or producing our latest documentary, 'The A Word', which shines a light on the American women fighting for reproductive rights, we know how important it is to parse out the facts from the messaging.

At such a critical moment in US history, we need reporters on the ground. Your donation allows us to keep sending journalists to speak to both sides of the story.

The Independent is trusted by Americans across the entire political spectrum. And unlike many other quality news outlets, we choose not to lock Americans out of our reporting and analysis with paywalls. We believe quality journalism should be available to everyone, paid for by those who can afford it.

Your support makes all the difference.

Sir: Gilbert Adair's paradox ("When pure logic is plain absurd", 5 September) is similar to "The Unexpected Hanging".

A man is sentenced to be hanged within the next seven days, but is told by the judge that the day of his execution will come as a surprise. He reasons that he cannot be hanged on the seventh day, because if he lives through the first six days then he will not be surprised to die on the seventh.

Having ruled out the last day, the logical slide begins and he rules out execution on the sixth day by the same reasoning. He can then work through the entire week and comes to the conclusion that he cannot be hanged during that week and be surprised as the judge had said.

He is executed on the seventh day and he is, of course, surprised.

Join our commenting forum

Join thought-provoking conversations, follow other Independent readers and see their replies

Comments

Thank you for registering

Please refresh the page or navigate to another page on the site to be automatically logged inPlease refresh your browser to be logged in