xia@lemmy.sdf.org to Showerthoughts@lemmy.worldEnglish · 1 month agoImaginary numbers are more real than infinity.message-squaremessage-square40fedilinkarrow-up195arrow-down117
arrow-up178arrow-down1message-squareImaginary numbers are more real than infinity.xia@lemmy.sdf.org to Showerthoughts@lemmy.worldEnglish · 1 month agomessage-square40fedilink
minus-squarexia@lemmy.sdf.orgOPlinkfedilinkEnglisharrow-up3·1 month agoDoes this mean the concept of infinity requires an infinite number of infinities?
minus-squareLeate_Wonceslace@lemmy.dbzer0.comlinkfedilinkEnglisharrow-up4arrow-down1·1 month agoInformally, yes. Formally, no. There is no cardinal sufficient such that every cardinal can fit in a set with that cardinality. Isn’t that fascinating? There’s too many infinities for us to mathematically express how many infinities there are.
minus-squarePeriodicallyPedantic@lemmy.calinkfedilinkarrow-up1·1 month agoI believe so. I wonder what is the ordinal of the set of ordinals.
Which infinity?
Does this mean the concept of infinity requires an infinite number of infinities?
Informally, yes. Formally, no. There is no cardinal sufficient such that every cardinal can fit in a set with that cardinality. Isn’t that fascinating? There’s too many infinities for us to mathematically express how many infinities there are.
I believe so. I wonder what is the ordinal of the set of ordinals.