Full Idea
Singular causation entails physical probabilities or chances. ...Causal laws require causes to raise their effects' chances, as when fires have a greater chance of occurring when explosions do.
Gist of Idea
Singular causation requires causes to raise the physical probability of their effects
Source
D.H. Mellor (Properties and Predicates [1991], 'Props')
Book Reference
'Properties', ed/tr. Mellor,D.H. /Oliver,A [OUP 1997], p.259
A Reaction
It seems fairly obvious that a probability can be increased without actually causing something. Just after a harmless explosion is a good moment for arsonists, especially if Mellor will be the investigating officer.