# All Questions

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### What happens to simple modules under Ringel duality?

If $A$ is a quasi-hereditary algebra then its Ringel dual $A'=End_A(T)$ is the endomorphism algebra of a (minimal) full tilting module $T$ for $A$. The algebra $A'$ is again quasi-hereditary, although ...
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### Is symbolic logic overemphasized in the foundations of mathematics? [on hold]

I am an amateur. My questions generally go unanswered because many prevalent views concerning the nature of mathematics reduce the subject to meaningless syntax. I disagree with this view and do not ...