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soft question - How widely known are Iverson brackets?
group theory - Iverson bracket help - Mathematics Stack Exchange
notation - Is there a math expression equivalent to the conditional ...
notation - Iverson Bracket / Conditional Sum of a string
probability - How do I use the Iverson Bracket notation to …
graph theory - Iverson Brackets - Mathematics Stack Exchange
Iverson bracket identity - Mathematics Stack Exchange
Double summation with infinite limit, change of index using …
What is the double bracket notation used here?
Concrete Mathematics Warmup 4: Expanding a Triple Sum