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Brachylog, 8 bytes pᵐ≠{b|}ᵛ Try it online! Since it takes $5!*5! = 14400$ tries to determine that the first test case gives false, I've added some shorter ones... pᵐ Permute each ele...
#1: Initial revision
# [Brachylog], 8 bytes
pᵐ≠{b|}ᵛ
[Try it online!][TIO-klyo3k5f]
[Brachylog]: https://github.com/JCumin/Brachylog
[TIO-klyo3k5f]: https://tio.run/##SypKTM6ozMlPN/pfXa6koGunoFRuX/2obcOjpuZHHcuVSopKU/WUakDMtMScYiC79uGuztqHWyf8LwASjzoXVCfVALmz//@PjlaKUNIB4lgdICsSznR0cgaynR2dUHguSDxHZxdnCNfF38kVJODk7@IKFgkJDfABiYSE@ngGwLS4gERcHF2cILqcHIOAfCDpB@P6QfhBrkCRWAA "Brachylog – Try It Online"
Since it takes $5!*5! = 14400$ tries to determine that the first test case gives false, I've added some shorter ones...
```
pᵐ Permute each element of the input.
≠ The permuted elements are not equal,
{ }ᵛ but yield the same result if
| maybe
b their first elements are removed.
