Math stuff Show more

You ever finish writing something, look at it and go "you know what, sure, let's go with that"

re: Math stuff Show more

Are there any surjective maps from Z into Z2 that aren't mod 2? Maybe? I don't heckin know, but it SOUNDS right

@socks Z is generated by 1, so any map is determined by where 1 goes. It either goes to 0 or 1, so those are the two maps, and only one of them is surjective.

@jay Oh. Duh. Yeah, that makes sense. Thank you

Emil Socks' personal instance!

Jay@jay@cybre.spacere: Math stuff

@socks Z is generated by 1, so any map is determined by where 1 goes. It either goes to 0 or 1, so those are the two maps, and only one of them is surjective.