Example sentences of "require [conj] [adv] [verb] for " in BNC.

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1 Causes are therefore either required or alternatively required for their effects .
2 It may well be that events can be causes in virtue of satisfying criteria about their being required or alternatively required for effects which are different from the mentioned two .
3 If causes are required or alternatively required for their effects , they evidently are not the only things that are such .
4 The other conditions of an effect , by which I again mean particulars or tokens rather than types — it would again be more accurate to speak of individual properties and relations — are also required or alternatively required for the effects .
5 We began with the idea that a causal circumstance consists in a set of conditions including a cause or causes-more precisely a set of individual properties-each being ( 1 , 1a ) required or alternatively required for the effect .
6 From this it followed ( 2 , 2a ) that the circumstance too is required or alternatively required for the effect .
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