Q-Neg scope in the comics

The One Big Happy in my feed today (dated 7/25):

It’s a question of the relative scoping of a quantifier ∃, of existence, and ¬, negation, with respect to the propositional-attitude verb (Ibelieve. In a crude informal symbolism:

¬ (∃ (X: one-word-you-said, I-believe X)) ‘there’s not one word you said that I believe’ (equivalent to ‘every word you said, I didn’t believe it’) — what Ruthie’s mother intends

∃ (X: one-word-you-said, ¬ (I-believe X)) ‘there’s one word you said that I don’t believe’ — what Ruthie understands


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