File: log-equal.lisp

package info (click to toggle)
acl2 6.5-2
  • links: PTS
  • area: main
  • in suites: jessie, jessie-kfreebsd
  • size: 108,856 kB
  • ctags: 110,136
  • sloc: lisp: 1,492,565; xml: 7,958; perl: 3,682; sh: 2,103; cpp: 1,477; makefile: 1,470; ruby: 453; ansic: 358; csh: 125; java: 24; haskell: 17
file content (12 lines) | stat: -rw-r--r-- 300 bytes parent folder | download | duplicates (20) 
1
2
3
4
5
6
7
8
9
10
11
12
 
(in-package "ACL2")

;Did we say we'd keep log= enabled?  Will this cause lots of splitting on ifs?

(defund log= (x y)
  (declare (xargs :guard t))
  (if (equal x y) 1 0))

;or did we say we'd keep log= disabled?
(defthm log=-same
  (equal (log= x x) 1)
  :hints (("Goal" :in-theory (enable log=))))