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-rw-r--r--grammars/prelude/Prelude.gf2
1 files changed, 2 insertions, 0 deletions
diff --git a/grammars/prelude/Prelude.gf b/grammars/prelude/Prelude.gf
index 385a734ec..d124d7df6 100644
--- a/grammars/prelude/Prelude.gf
+++ b/grammars/prelude/Prelude.gf
@@ -29,6 +29,8 @@ oper
postfixSS : Str -> SS -> SS = \f,x -> ss (x.s ++ f) ;
embedSS : Str -> Str -> SS -> SS = \f,g,x -> ss (f ++ x.s ++ g) ;
+ id : (A : Type) -> A -> A ;
+
-- discontinuous
SD2 = {s1,s2 : Str} ;
sd2 : (_,_ : Str) -> SD2 = \x,y -> {s1 = x ; s2 = y} ;