I'm not sure you are correct, And I didn't understand completely what you mean. But, I think we say the same thing. I believe it doesn't matter if you know the exact definition of closure "by the book", the most important thing it's to understand the concept.
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I'm not sure you are correct, And I didn't understand completely what you mean. But, I think we say the same thing. I believe it doesn't matter if you know the exact definition of closure "by the book", the most important thing it's to understand the concept.