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Re: Life of Fred Portia #195955 07/05/14 03:02 PM
Joined: Feb 2013 Posts: 1,228 2 22B Member
22B Member 2 Joined: Feb 2013 Posts: 1,228	Originally Posted by Portia Originally Posted by bluemagic I do appreciate the fun in trying to prove infinity and debating it's existence. There are people who debate the existence of "3" as well. Speaking of infinity a few months ago Vi Hart put out a realativly new video about infinity that is fun. http://vihart.com/how-many-kinds-of-infinity-are-there/ Thanks for the link to the video. The timing is quite handy. DS7 is struggling with finding an infinity which has numeric properties (adding, subtracting, etc.) for a proof he wants to solve. We have not delved into the different types of infinity. YET. http://en.wikipedia.org/wiki/Cardinal_arithmetic#Cardinal_arithmetic Basically, subtraction (and division etc) can't work for infinite cardinals.

Re: Life of Fred Curiouser #195981 07/07/14 04:48 AM
Joined: Sep 2013 Posts: 155 NJ C Curiouser OP Member
OP Curiouser Member C Joined: Sep 2013 Posts: 155 NJ	update: we went through the whole book....DS liked enjoyed it, but it really doesn't seem worth the price to buy them new. We will continue to hunt for more library versions, because they are clearly fun, but for now, that's where we will stay (unless DS starts seriously bugging us, I guess....)

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