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    First Order Peano Arithmetic (FOPA) Question

    Hello, Can someone please please please help me on this question, a friend of mind in uni totally can't do it and she has an exam this thursday and she needs to learn how to do it to help her prepare for the exam. Can someone do this question to help her ? Let A be a sentence of First...
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    Prove that if |A| ≤ |B| and |B| ≤ |C| then |A| ≤ |C|

    Hello, Can someone help me on this question please ? Prove that if |A| ≤ |B| and |B| ≤ |C| then |A| ≤ |C| Thanks in advance.
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