The phrase "are convinced on" is not correct in standard written English.
The correct expression is "are convinced of."
Example: "They are convinced of the importance of education in shaping a better future."
Alternatives: "are certain about" or "are persuaded of."
One of the top aides to Yemen's president, Ali Abdullah Saleh, said, "As we have told the Americans, nobody can say there is solid proof that Osama bin Laden is the shadowy man behind the bombing, but we are convinced, on the basis of everything we have learned so far, that he was".
"He is convinced on two points: the threat is real; and success against Saddam will yield more regional success".
(All ages) Every child in the world is convinced on some level that the world revolves around him or her.
(Both Sitwell and the British novelist Angus Wilson, among others, were convinced on first reading Purdy's work that the author himself was black).
Bishop Dolan, who said he had checked the priest's personnel files and found no hint of a problem, was convinced on the spot.
But Andrew is convinced, on the evidence of a short story, that Horace Jacob Little is at the centre of all manner of dire plots and conspiracies.In this section Treachery, egotism or bravery?
I was convinced on the night of Rouhani's election that Tehran had decided it was time for a nuclear deal, and everything that has transpired since then has only strengthened that conviction.
Turnbull said the Australian Electoral Commission had yet to finish the count and determine the new senators, some of who had "open minds and remain to be convinced on the merits of either side of the argument".
They were convinced, on very little evidence, that he should not be driving.
One issue she is convinced on is the need for a new hospital, with an out of town location her preference.
Ath: I'd like to think he could be convinced on the basis that there is sufficient evidence because our understanding has come a long way in the past 140 years since Huxley was writing.
