File: HoTT_coq_049.v

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Require Import FunctionalExtensionality.

Goal forall y, @f_equal = y.
intro.
apply functional_extensionality_dep.
(* Error: Ill-typed evar instance in HoTT/coq, Anomaly: Uncaught exception Reductionops.NotASort(_). Please report. before that. *)
Abort.