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  1. When is a Schema Not a Schema? On a Remark by Suszko.Lloyd Humberstone & Allen Hazen - 2020 - Studia Logica 108 (2):199-220.
    A 1971 paper by Roman Suszko, ‘Identity Connective and Modality’, claimed that a certain identity-free schema expressed the condition that there are at most two objects in the domain. Section 1 here gives that schema and enough of the background to this claim to explain Suszko’s own interest in it and related conditions—via non-Fregean logic, in which the objects in question are situations and the aim is to refrain from imposing this condition. Section 3 shows that the claim is false, (...)
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