and and or have been exposed in the Prelude for 22+ years. They were in by Haskell 1.2 from 1992 at latest, and where possibly around earlier.

Any pain they cause is long since over.

Adding nand and nor for trivial compositions causes fresh pain for anyone already using those names ... to save 3 characters.

-Edward

On Thu, Feb 27, 2014 at 10:13 AM, Alexander Berntsen <alexander@plaimi.net> wrote:

Again, if 'and' and 'or' are exposed without it being a problem, 'nand'
and 'nor' could be too without causing a dramatic namespace pollution.
---
Prelude.hs | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Prelude.hs b/Prelude.hs
index 6be7846..79e3868 100644
--- a/Prelude.hs
+++ b/Prelude.hs
@@ -83,7 +83,7 @@ module Prelude (
-- ** Reducing lists (folds)
foldl, foldl1, foldr, foldr1,
-- *** Special folds
- and, or, any, all,
+ and, or, nand, nor, any, all, nany, nall,
sum, product,
concat, concatMap,
maximum, minimum,
--
1.8.3.2

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