Terms for subject Mathematics containing be basic

English	Russian
be basic to	быть основным для
relation 4 may be referred to as the basic equation of airborne gravimetry	называть
the addition is taken as a basic operation	принять за
the basic design has been retained with no modifications	основы проекта были сохранены без переработки
the basic design has been retained with no modifications	основы проекта были сохранены без изменений
the basic point is that the initial equation can be approximated in the form	главная идея
the basic point of the proof is the inequality	основной пункт доказательства
the basic point of the proof is the inequality	основная часть доказательства