Revert "wrapping Varieties"

This reverts commit 48bcd87bd8561dc616efc35f5ee3ad8141ed5f3b.
Revert "replacing old file"

This reverts commit 04042ebfb42773a44db1f0ec04cd4315ce6a3eb0.
Revert "wrapping Modules"

This reverts commit d15e0f033d931109a3b90cc511223584aed5ae6c.
Revert "Wrapping Rings and Ideals.tex"

This reverts commit 622472717d7d1429207f49e8a821950052e28dab.