In this video at 36:50 the professor states that the homomorphism $\tilde\gamma$ exists because $S$ is projective. Is she saying that $\tilde\gamma$ is a section? This isn't clear to me. What property of projective modules should I be reviewing?
2026-03-30 00:57:50.1774832270
Useful Lemma For Morita Equivalence
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