7 Require Ring_normalize.
11 Print XML Module Disk "examples" ArithRing.
12 Print XML Module Disk "examples" Quote.
13 Print XML Module Disk "examples" Ring.
14 Print XML Module Disk "examples" Ring_abstract.
15 Print XML Module Disk "examples" Ring_normalize.
16 Print XML Module Disk "examples" Ring_theory.
17 Print XML Module Disk "examples" ZArithRing.