Foundational formalism, more intuitive than ZFC or category theory, by my sometime-officemate David McAllesterhttps://machinethoughts.wordpress.com/2015/01/27/the-foundations-of-mathematics-2/ …
-
-
@St_Rev “any function f: σ→𝛕 defines a bag of 𝛕” seems wrong to me. Not sure what he’s getting at there. -
@St_Rev Oh, wait, no, I see. This is actually his main point. He doesn’t mean “defines”; he means “implicitly specifies.” -
@St_Rev Given f: σ→𝛕, there’s an obvious natural induced mapping f: 𝛕→N, the count of how many times an element of 𝛕 appears in range. -
@Meaningness That's actually a pretty strong rigidity property, I think. -
@St_Rev “rigidity property”? -
@Meaningness requiring that f induce a natural mapping to N brutally clamps down on your universe of functions. -
@St_Rev in case not clear, multisets are just an example application—this is not a general requirement! -
@Meaningness anyway yeah I know what multisets are, just found the presentation confusing
End of conversation
New conversation -
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.
. Banned in Sweden. SubGenius, Zhuangist, white-hat troll. Defrocked mathematician. Brain problems.