Terms for subject Mathematics containing that cannot be

English	Russian
irrational numbers are the numbers that cannot be represented as the quotient of two integers	иррациональные числа
it cannot be doubted that	нет ни малейшего сомнения в том, что
it cannot be tolerated that	нельзя допускать
it cannot be too highly stressed that	необходимо особенно подчеркнуть, что ...