Assertion: logic | /r/HasProperty | limited to first-order logic
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text: For example, Wagner (1987, 10–11) invokes Lindstrom’s theorem—that first-order logic is the only logic that is either complete or compact and satisfies the Löwenheim-Skolem theorem—in arguing that logic should be limited to first-order logic, and Kneale and Kneale (1962, 724, 741) invoke Gödel’s incompleteness theorems to similar effect.