Richard Zach et al. logic textbooks are a work of art: https://slc.openlogicproject.org.
Aside, I'd be happy to pay for great classic math textbooks in a well typeset edition.
Finite Dimensional Vector Spaces is one such example. The text is fantastic, but everything is too cramped and hard to read compared to a modern book from the 1970s onward.
A newer edition typeset in LaTeX would be great.
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