diff --git a/GNUmakefile b/GNUmakefile
index 9e648250..5fc75d7d 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -57,10 +57,11 @@ TESTS:=\
  tests/closure.test\
  tests/quasiquote.test\
  tests/let.test\
- tests/vector.test\
  tests/scm.test\
  tests/display.test\
  tests/cwv.test\
+ tests/math.test\
+ tests/vector.test\
  tests/srfi-1.test\
  tests/srfi-13.test\
  tests/srfi-14.test\
diff --git a/module/mes/base-0.mes b/module/mes/base-0.mes
index 4ed7f483..b505012d 100644
--- a/module/mes/base-0.mes
+++ b/module/mes/base-0.mes
@@ -35,8 +35,6 @@
 (define (primitive-eval e) (core:eval e (current-module)))
 (define eval core:eval)
 
-(define quotient /)
-
 (define-macro (defined? x)
   (list 'assq x '(cddr (current-module))))
 
diff --git a/module/mes/scm.mes b/module/mes/scm.mes
index 917ce765..56906640 100644
--- a/module/mes/scm.mes
+++ b/module/mes/scm.mes
@@ -282,6 +282,8 @@
 
 
 ;;; Math
+(define quotient /)
+
 (define (<= . rest)
   (or (apply < rest)
       (apply = rest)))
diff --git a/tests/math.test b/tests/math.test
new file mode 100755
index 00000000..4ec79a1e
--- /dev/null
+++ b/tests/math.test
@@ -0,0 +1,81 @@
+#! /bin/sh
+# -*-scheme-*-
+echo ' ()' | cat $(dirname $0)/../module/mes/base-0.mes $0 /dev/stdin | $(dirname $0)/../scripts/mes $MES_FLAGS "$@"
+#paredit:||
+exit $?
+!#
+
+;;; -*-scheme-*-
+
+;;; Mes --- Maxwell Equations of Software
+;;; Copyright © 2016 Jan Nieuwenhuizen <janneke@gnu.org>
+;;;
+;;; This file is part of Mes.
+;;;
+;;; Mes is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; Mes is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with Mes.  If not, see <http://www.gnu.org/licenses/>.
+
+(mes-use-module (mes scm))
+(mes-use-module (srfi srfi-0))
+(mes-use-module (mes test))
+
+(pass-if "+" (seq? (+ 1 2 3) 6))
+(pass-if "*" (seq? (* 3 3 3) 27))
+(pass-if "/" (seq? (/ 9 3) 3))
+(pass-if "remainder" (seq? (remainder 11 3) 2))
+(pass-if "modulo" (seq? (modulo 11 3) 2))
+(pass-if "expt" (seq? (expt 2 3) 8))
+(pass-if "logior" (seq? (logior 0 1 2 4) 7))
+(pass-if-equal "ash"
+    8 (ash 1 3))
+(pass-if-equal "ash -1"
+    5 (ash 10 -1))
+
+(pass-if "=" (seq? 3 '3))
+(pass-if "= 2" (not (= 3 '4)))
+
+(pass-if "=" (seq? (=) #t))
+(pass-if "= 1" (seq? (= 0) #t))
+(pass-if "= 2" (seq? (= 0 0) #t))
+(pass-if "= 3" (seq? (= 0 0) #t))
+(pass-if "= 4" (seq? (= 0 1 0) #f))
+
+(pass-if "<" (seq? (<) #t))
+(pass-if "< 1" (seq? (< 0) #t))
+(pass-if "< 2" (seq? (< 0 1) #t))
+(pass-if "< 3" (seq? (< 1 0) #f))
+(pass-if "< 4" (seq? (< 0 1 2) #t))
+(pass-if "< 5" (seq? (< 0 2 1) #f))
+
+(pass-if ">" (seq? (>) #t))
+(pass-if "> 1" (seq? (> 0) #t))
+(pass-if "> 2" (seq? (> 1 0) #t))
+(pass-if "> 3" (seq? (> 0 1) #f))
+(pass-if "> 4" (seq? (> 2 1 0) #t))
+(pass-if "> 5" (seq? (> 1 2 0) #f))
+
+(pass-if ">=" (seq? (>= 3 2 1) #t))
+(pass-if ">= 2" (seq? (>= 1 2 3) #f))
+
+(pass-if "<=" (seq? (<= 3 2 1) #f))
+(pass-if "<= 2" (seq? (<= 1 2 3) #t))
+
+(pass-if "max" (seq? (max 0) 0))
+(pass-if "max 1" (seq? (max 0 1) 1))
+(pass-if "max 2" (seq? (max 1 0 2) 2))
+
+(pass-if "min" (seq? (min 0) 0))
+(pass-if "min 1" (seq? (min 0 1) 0))
+(pass-if "min 2" (seq? (min 1 0 2) 0))
+
+(result 'report)
diff --git a/tests/scm.test b/tests/scm.test
index 27b37571..d895e190 100755
--- a/tests/scm.test
+++ b/tests/scm.test
@@ -53,21 +53,6 @@ exit $?
 
 
 
-(pass-if "+" (seq? (+ 1 2 3) 6))
-(pass-if "*" (seq? (* 3 3 3) 27))
-(pass-if "/" (seq? (/ 9 3) 3))
-(pass-if "remainder" (seq? (remainder 11 3) 2))
-(pass-if "modulo" (seq? (modulo 11 3) 2))
-(pass-if "expt" (seq? (expt 2 3) 8))
-(pass-if "logior" (seq? (logior 0 1 2 4) 7))
-(pass-if-equal "ash"
-    8 (ash 1 3))
-(pass-if-equal "ash -1"
-    5 (ash 10 -1))
-
-(pass-if "=" (seq? 3 '3))
-(pass-if "= 2" (not (= 3 '4)))
-
 (pass-if-equal "string-length"
     0
     (string-length ""))
@@ -149,40 +134,6 @@ exit $?
 (pass-if "apply identity 2" (sequal? (apply identity '((0 1))) '(0 1)))
 (pass-if "apply append" (sequal? (apply append '((1 2) (3 4))) '(1 2 3 4)))
 
-(pass-if "=" (seq? (=) #t))
-(pass-if "= 1" (seq? (= 0) #t))
-(pass-if "= 2" (seq? (= 0 0) #t))
-(pass-if "= 3" (seq? (= 0 0) #t))
-(pass-if "= 4" (seq? (= 0 1 0) #f))
-
-(pass-if "<" (seq? (<) #t))
-(pass-if "< 1" (seq? (< 0) #t))
-(pass-if "< 2" (seq? (< 0 1) #t))
-(pass-if "< 3" (seq? (< 1 0) #f))
-(pass-if "< 4" (seq? (< 0 1 2) #t))
-(pass-if "< 5" (seq? (< 0 2 1) #f))
-
-(pass-if ">" (seq? (>) #t))
-(pass-if "> 1" (seq? (> 0) #t))
-(pass-if "> 2" (seq? (> 1 0) #t))
-(pass-if "> 3" (seq? (> 0 1) #f))
-(pass-if "> 4" (seq? (> 2 1 0) #t))
-(pass-if "> 5" (seq? (> 1 2 0) #f))
-
-(pass-if ">=" (seq? (>= 3 2 1) #t))
-(pass-if ">= 2" (seq? (>= 1 2 3) #f))
-
-(pass-if "<=" (seq? (<= 3 2 1) #f))
-(pass-if "<= 2" (seq? (<= 1 2 3) #t))
-
-(pass-if "max" (seq? (max 0) 0))
-(pass-if "max 1" (seq? (max 0 1) 1))
-(pass-if "max 2" (seq? (max 1 0 2) 2))
-
-(pass-if "min" (seq? (min 0) 0))
-(pass-if "min 1" (seq? (min 0 1) 0))
-(pass-if "min 2" (seq? (min 1 0 2) 0))
-
 (pass-if "char-alphabetic?" (seq? (char-alphabetic? #\a) #t))
 (pass-if "char-alphabetic? 2" (seq? (char-alphabetic? #\[) #f))