Smith IRV PUT

Violation of Negative Involvement

Profile type: Profile
Config: 3 c, 4 v
Parameters: check_probabilities=True

0 wins in the full profile, but 0 is a loser after removing a voter with the ranking (1, 2, 0):

Full profile
+---+---+---+
| 1 | 2 | 1 |
+---+---+---+
| 0 | 1 | 2 |
| 2 | 2 | 0 |
| 1 | 0 | 1 |
+---+---+---+
Profile([[0, 2, 1], [1, 2, 0], [2, 0, 1]], rcounts=[1, 2, 1], cmap={0: '0', 1: '1', 2: '2'})
Smith IRV PUT winners are {0, 1, 2}

Profile with voter removed
+---+---+---+
| 1 | 1 | 1 |
+---+---+---+
| 0 | 1 | 2 |
| 2 | 2 | 0 |
| 1 | 0 | 1 |
+---+---+---+
Profile([[0, 2, 1], [1, 2, 0], [2, 0, 1]], rcounts=[1, 1, 1], cmap={0: '0', 1: '1', 2: '2'})
Smith IRV PUT winner is {2}