(* This file was automatically generated: do not edit *********************)
-include "Base-1/preamble.ma".
+include "Ground-1/preamble.ma".
inductive and3 (P0: Prop) (P1: Prop) (P2: Prop): Prop \def
| and3_intro: P0 \to (P1 \to (P2 \to (and3 P0 P1 P2))).