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@rzeta0@mathstodon.xyz · last week

An easy way to remember the difference between combination and permutation.

"permutation lock" will be my mnemonic

https://www.mathsisfun.com/combinatorics/combinations-permutations.html

Combinations and Permutations

In English we use the word combination loosely, without thinking if the order of things is important. In other words:

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