http://green-fr.livejournal.com/ ([identity profile] green-fr.livejournal.com) wrote in [personal profile] green_fr 2019-06-26 06:27 pm (UTC)

Найти контрпример - это не то же самое, что доказать теорему, правда ведь? Этот контрпример может проверить любой школьник с калькулятором, вне зависимости от того, как его нашли.
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