| Subject | English | Russian |
| gen. | prove in | вступить (в значении "начать принимать участие". In most legal systems, secured creditors also have the option of releasing their security and proving in the liquidation, although, in practice, they would rarely do so 4uzhoj) |
| law | prove in bankruptcy | вступать в дело о банкротстве (andrew_egroups) |
| gen. | prove in competition | вступать в спор |
| elect. | prove in practice | на деле оказаться, что (The ward system might prove in practice no better than the at-large system. ART Vancouver) |
| Makarov. | prove in rigorous terms | доказывать строго |
| gen. | prove in the court | доказать в суде (WiseSnake) |
| tech. | prove-in performance | рентабельность |