Thank you everyone who participated in class today. Thank you also to all of you playing at home, following Theory of LTC in your own time.

This week’s focus question is:

What is the use of logic? Why should we hope to be logical?

Please leave a comment below with your answer. Don’t be afraid to respond to other people’s answers in your own.

Remember the two rules: Use your initials instead of your real name and enjoy the ride!

Here’s a quote and a logic puzzle to get you started.

There are a thousand and one gates leading into the orchard of mystical truth. Every human being has his own gate. We must never make the mistake of wanting to enter the orchard by any gate but our own. To do this is dangerous for the one who enters and also for those who are already there.

– Elie Wiesel

A very special island is inhabited only by knights and knaves. Knights always tell the truth, and knaves always lie.

You meet two inhabitants: Zoey and Mel. Zoey tells you that Mel is a knave. Mel says, `Neither Zoey nor I are knaves.’

Can you determine who is a knight and who is a knave?

– from: