Perform the operation of conversion, obversion, and contraposition as indicated.
Obvert the following propositions and state whether the obverse is logically equivalent or not logically equivalent to the given proposition.
a. All radically egalitarian societies are societies that do not preserve individual liberties.
b. No cult leaders are people who fail to brainwash their followers.
c. Some college football coaches are people who do not slip money to their players.
d. Some budgetary cutbacks are not actions fair to the poor.