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-rw-r--r--stdlib/source/lux/data/product.lux9
1 files changed, 5 insertions, 4 deletions
diff --git a/stdlib/source/lux/data/product.lux b/stdlib/source/lux/data/product.lux
index fe31c2020..d38350929 100644
--- a/stdlib/source/lux/data/product.lux
+++ b/stdlib/source/lux/data/product.lux
@@ -31,7 +31,8 @@
[y x]))
(def: #export (both f g)
- (All [a b c] (-> (-> a b) (-> a c)
- (-> a [b c])))
- (function [input]
- [(f input) (g input)]))
+ (All [a b c d]
+ (-> (-> a c) (-> b d)
+ (-> [a b] [c d])))
+ (function [[x y]]
+ [(f x) (g y)]))