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minus-squareVenator@lemmy.nzlinkfedilinkEnglisharrow-up6·21 days agoIt’s been a while since I’ve done products of sets, but what if one of the sets in the product is a set of empty sets?
minus-squareLog in | Sign up@lemmy.worldlinkfedilinkEnglisharrow-up4·21 days agoThen it’s not empty. If it were a union of empty sets, that would be empty.
It’s been a while since I’ve done products of sets, but what if one of the sets in the product is a set of empty sets?
Then it’s not empty. If it were a union of empty sets, that would be empty.