Example sentences of "have proved [prep] [noun sg] " in BNC.

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1 It has proved of benefit when used against herpes viruses or viral hepatitis for example , and researchers at the MRC 's Common Cold Unit in Wiltshire have shown that it can provide effective protection against colds .
2 The falsificationist now appears to be reaching a tentative solution to his problem , although he does not consider himself to have proved by experiment how bats avoid collisions while flying .
3 Mr Kinnock said the choice on polling day was between a Tory Party that , after 13 years in power , had proved beyond doubt it had no ambition to make Britain better and no conscience to make Britain worse , or a Labour Party with active policies to pull the country out of recession and build a lasting recovery .
4 Mr Kinnock said the choice on polling day was between a Tory Party that , after 13 years in power , had proved beyond doubt it had no ambition to make Britain better and no conscience to make Britain worse , or a Labour Party with active policies to pull the country out of recession and build a lasting recovery .
5 Beyond this fault the vein had proved in default and a considerable search had failed to locate it .
6 These tactics were necessary because the major national political issues of 1935 had proved in practice to be disastrous flops for the BUF .
7 Those policies will be pursued by a Government who have proved beyond doubt to those working in the prisons their commitment to prison expansion and improvement as well as necessary increases and efficient practices in manpower .
8 In this case , ( 12 ) becomes successively unc and ( 13 ) yields unc Hence as before , unc We have proved in Theorem VIII that with these conditions , X is real ; hence ( 15 ) implies p = 0 , and as before , A is not defective .
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