For now, consider the rules. Stylistic Variants 9. It is not the case that logic is boring. It is false that logic is boring. It is not true that logic is boring.
Logic fails to be boring.
Stylistic Variants 13. Descartes is a substance dualist and Fodor is a functionalist. Descartes is a substance dualist, but Fodor is a functionalist. While Descartes is a substance dualist, Fodor is a functionalist. Although Descartes is a substance dualist, Fodor is a functionalist.