Answer :

“The software system is being upgraded.” and  “Users can not access the file system.”

Therefore

[tex]U-- > a^{-}[/tex]

This is further explained below.

What is system software?

Generally, Software is a category of a computer program that is utilized in the operation of a computer's hardware as well as the application software that is installed on the computer.

In conclusion,  “Whenever the system software is being upgraded, users cannot access the file system.” Therefore

“The software system is being upgraded.” and  “Users can not access the file system.”

Therefore

[tex]U-- > a^{-}[/tex]

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complete question

Let the following statements be represented symbolically as shown:

u: “The software system is being upgraded.”

a: “Users can access the file system.”

s: “Users can save new files.”

a) “Whenever the system software is being upgraded, users cannot access the file system.”