• equivalent ⪢⪢
http://qindex.info/i.php?x=12149

• equivalent ⪢⪢
http://qindex.info/i.php?x=24695

○○○ sled ⪢⪢
The sledding crew looked to be having fun. After their ride they snacked on sugar cane. That's the elephant equivalent of going out for ice cream.
http://qindex.info/i.php?x=16163

• prime number theorem
○ Around 300 BC Euclid proved there were infinite number of prime numbers. ○ The number of prime numbers less than a certain natural number is asymptotically equivalent to x/(x⍻e).
http://qindex.info/i.php?x=3779

• equivalent fractions
http://qindex.info/i.php?x=3454

• prime number theorem
○ π(n) is asymptotically equivalent to x/log x. ○ Of the first n integers, roughly 1/log n of them would be prime. #math
http://qindex.info/i.php?x=9583

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