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This commit is contained in:
Thomas Baruchel 2023-01-04 18:19:04 +01:00
parent a74abadbc6
commit f3aa7478fb
1 changed files with 5 additions and 7 deletions
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12
src/thue_morse.v
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@ -1344,15 +1344,13 @@ Proof.
assert (J: {a=b} + {~ a=b}). apply list_eq_dec. apply bool_dec.
destruct J.
- rewrite <- e in H.
assert (exists (hd a tl : list bool),
assert (J: exists (hd a tl : list bool),
tm_step n = hd ++ a ++ a ++ a ++ tl /\ 0 < length a).
exists hd. exists a. exists tl. split; assumption.
assert (exists (hd2 b tl2 : list bool),
tm_step 0 = hd2 ++ b ++ b ++ b ++ tl2 /\ 0 < length b).
generalize H0. apply tm_step_cube7.
destruct H1. destruct H1. destruct H1. destruct H1.
assert (0 < 0). generalize H2. generalize H1. apply tm_step_cube2.
apply Nat.lt_irrefl in H3. contradiction H3.
apply tm_step_cube7 in J.
destruct J. destruct H0. destruct H0. destruct H0.
assert (0 < 0). generalize H1. generalize H0. apply tm_step_cube2.
apply Nat.lt_irrefl in H2. contradiction H2.
- assumption.
Qed.