  The main business of “General Propositions and Causality” is to discuss the nature of causal generalisations, also called variable hypotheticals – and naturally this leads him to discuss their singular conditional instances. He argues that “variable hypotheticals are not judgements but rules for judging ‘If I meet a \(\phi\) I shall treat it as a \(\psi\)’. This cannot be negated, but it can be disagreed with by one who does not adopt it” (1929b, [FM] 241, italics original). There is emphasis throughout on the idea that these conditional judgements are not propositions. After an example in which \(A\) says “If I eat the pie I will get a stomach-ache” and \(B\) disagrees, Ramsey writes: