"I thought {@} would be a good for an empty set because it arguably looks like the empty set symbol" I'm just nitpicking but I don't think this is a good justification - If the @ symbol looks like the empty set symbol,…
"I thought {@} would be a good for an empty set because it arguably looks like the empty set symbol" I'm just nitpicking but I don't think this is a good justification - If the @ symbol looks like the empty set symbol,…