establish the validity of something, as by an example, explanation or experiment | have a firm understanding or knowledge of; be on top of |
obtain probate of | be careful or certain to do something; make certain of something |
prove formally; demonstrate by a mathematical, formal proof | verify by using a duplicate register for comparison |
provide evidence for | handle and cause to function |
take a trial impression of | maintain influence over (others or oneself) skillfully, usually to one's advantage |
cause to puff up with a leaven | exercise authoritative control or power over |
increase in volume | lessen the intensity of; temper; hold in restraint; hold or keep within limits |
put to the test, as for its quality, or give experimental use to | check or regulate (a scientific experiment) by conducting a parallel experiment or comparing with another standard |
be shown or be found to be | place under restrictions; limit access to by law |