 It is a widely agreed in philosophy that the real significance of exclusive cp-laws lies in situations where strict completion is impossible (for example, cf. Rescher 1994, 14; Pietroski &amp; Rey 1995, 84, 102; Horgan &amp; Tienson 1996, 119f.). In that case, the exclusive cp-law is indefinite, which means that its exclusive cp-clause consists in a universal second order condition which excludes all kinds of disturbing factors to the law, whatever they are. Formally, also an indefinite exclusive cp-law may be written as a strictly completed law of the form “if disturbing factors are excluded, then \(A\)s will always be \(C\)s”—only that the meaning of “all disturbing factors” is now unclear which leads to various sorts of deficiencies that are discussed in the next section.