(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Find a collection of well-formed formulas Ʃ such that Ʃ has no independent equivalent subset.

2. Relevant equations

N/A

3. The attempt at a solution

So far I have been able to show that Ʃ must be infinite. However, after this, I get stuck. Could anyone give me a hint on how to construct such a Ʃ?

Thanks!

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# Homework Help: Collection of Well-Formed Formulas with no Equivalent, Independent Subset

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