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For questions about mathematical notation, i.e. the symbols used to represent mathematical objects and operations.

2 votes
0 answers
121 views

Good notation for finite partial functions from $\omega$ to 2

Is there any vaguely standard notation for this? … \omega$ to 2 that's fine as well but I don't need to enforce that constraint so I'm fine with a general notation for a finite partial function. …
Peter Gerdes's user avatar
  • 3,029
0 votes
1 answer
80 views

Computability Theory Notation For Entering A Set At A Stage

Any suggestions for good notation? …
Peter Gerdes's user avatar
  • 3,029
1 vote
1 answer
181 views

Using Ordinal Notations in Computability Theory Is There A Standard Notation For The Notatio...

I find I frequently have to refer to the set of ordinal notations below some given notation. … For instance given a notation $\alpha$ I often need to refer to the set $\lbrace \beta \mid \beta <^{\mathcal{O}}_s \alpha\rbrace$. …
Peter Gerdes's user avatar
  • 3,029