Discuss the transforming an FOPL Formula into Prenex Normal Form with suitable example. Also, discuss Skolomization with a suitable example.

Prenex Normal Form (PNF) is a way of writing a logical formula where all the quantifiers (∀ for universal and ∃ for existential) are moved to the front of the formula, followed by a quantifier-free part.

Steps to convert a formula to PNF:

1. Eliminate implications and equivalences
2. Move negations ________ ________ __________ __________ ___ _______ ______.
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