用in proof of造句子，“in proof of”造句

I cited some quotations from classics in proof of his argument

Over the mantelpiece still hung a landscape in coloured silks of her performance, in proof of her having spent seven years at a great school in town to some effect.

During this unavoidable lapse of time the bridegroom, in proof of his eagerness, was expected to expose himself alone to the gaze of the assembled company.

Compared with the other theories, it is more suitable to the epistemology and the aim in the civil litigation, so, well-matched causation theory should be the basic theory in proof of causation.

To obtain proof of volunteer service;