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-rw-r--r--stlc-let.rkt1
1 files changed, 0 insertions, 1 deletions
diff --git a/stlc-let.rkt b/stlc-let.rkt
index 82d7a5f..84bf588 100644
--- a/stlc-let.rkt
+++ b/stlc-let.rkt
@@ -68,7 +68,6 @@
;; (equiv Type Type): Bool
(define (equiv a b)
(match* (a b)
- [[`(ref ,a) `(ref ,b)] (equiv a b)]
[[`(→ ,a ,c) `(→ ,b ,d)] (and (equiv a b) (equiv c d))]
[[a b] (equal? a b)]))