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Commit f3c4eb0a authored by Robbert Krebbers's avatar Robbert Krebbers
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Define `head` as notation that also prints (Coq defines it as `parsing only`).

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1 merge request!277Misc improvements to `head` and `tail` functions for lists
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theories/list.v
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...@@ -15,6 +15,7 @@ Global Instance: Params (@length) 1 := {}. ...@@ -15,6 +15,7 @@ Global Instance: Params (@length) 1 := {}.
Global Instance: Params (@cons) 1 := {}. Global Instance: Params (@cons) 1 := {}.
Global Instance: Params (@app) 1 := {}. Global Instance: Params (@app) 1 := {}.
Notation head := hd_error.
Notation tail := tl. Notation tail := tl.
Notation take := firstn. Notation take := firstn.
Notation drop := skipn. Notation drop := skipn.
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