The extent to which O'Neill opts to test his squad in terms of friendly opposition before Euro 2016 will prove a matter of intrigue.
What a representation theorem actually proves is a matter of some dispute (see Zynda 2000; Hájek 2008; Meacham and Weisberg 2011).
The difference between merely discovering a truth and proving it is a matter of transparency: for proving or following a proof the subject must be aware of the way in which the conclusion is reached and the soundness of that way; this is not required for discovery.
Whether or not that was true, it proved to be a matter of frustration to Republicans.
In what are now desert environments, increased dependence on the rivers may have proved as much a matter of necessity as of choice.
Beyond that, nearly two-thirds of the country thinks the nation is on the wrong track, a level that has historically proved to be a matter of concern for a party in power.
First, the film, which had been a mere pretext, turned out to be a revelation, and participation in the discussion, far from being a means to an end, proved to be a matter of personal importance to me, in helping to clarify my thoughts about this singular experience.
"What's the first name?" The first name, at least in this context, was proving to be a matter of some apprehension.
The pamphlets illustrate the advantages of something known as "the living trust," which despite its theological overtones soon proves to be a matter of hard dollars & cents.
The questions of Mr. Lazio's view on abortion, as well as his positions on a number of issues, may prove to be a matter of definition, and both candidates were moving aggressively yesterday to be the first to do the defining, drawing on contrasting interpretations of eight years of Congressional votes cast by Mr. Lazio, a Republican from Suffolk County.
Although this line of investigation is particularly intriguing, MSCs' potential to replace injured cells is not proven and is a matter of constant debate [103, 104, 106].
