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by modernerd 2348 days ago
Languages like Agda allow → or -> interchangeably in the body of the code: https://agda.readthedocs.io/en/v2.5.2/language/lexical-struc...

Most languages only allow such symbols in strings, though, so it's pretty simple:

- Symbols outside of a string literal are ligatures.

- Symbols inside strings are the real symbol.

Ligatures are also rendered differently to any similar unicode characters.