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|Subjunctive Conditionals||I 419 ff
Subjunctive Conditionals/Counterfactual Conditionals/Walker: every material implication with a false antecedent is true, but usually we distinguish true and false unreal cond. clauses. A speaker makes an effort to express one certain subj. cond. clause and not another.
Talking of a baby without a head is confusing in a way as it is not in an subj. cond. clause.
H. Paul Grice
Handlung, Kommunikation, Bedeutung, Hg. Georg Meggle Frankfurt/M. 1993