acl2-books 8.2dfsg-3 (amd64 binary) in ubuntu focal

 ACL2 is both a programming language in which you can model computer
 systems and a tool to help you prove properties of those models.
 .
 This package contains numerous precompiled and precertified libraries
 for use in proving theorems with ACL2. Serious users will no doubt
 want to install this package.