Python3 faster than 86%
\nclass Solution:\n    def checkIfPangram(self, sentence: str) -> bool:\n        if len(set(sentence.lower())) == 26:\n            return True\n        return F
```\nclass Solution:\n    def checkIfPangram(self, sentence: str) -> bool:\n        if len(set(sentence.lower())) == 26:\n            return True\n        return False\n```
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