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Οι περισσότεροι από εμάς γνωρίζουμε[br]το σύμβολο της ισότητας από

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τις μέρες της αριθμητικής.

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Μπορεί να δείτε κάτι[br]σαν 1 συν 1 είναι ίσο με 2.

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