The If (not) statement... im confused

[ThePentiumGuy]

If you say:

 

if not(a or b) Then

end if

 

logically, this statement would be,

if not A and not B Then

End if

 

but, contradictorily, wouldnt that turn into

 

if not A and B Then

End If

 

 

so basically, woundnt the Or change to an And when u remove the parenthesese

 

You may think im weird, but if you realy look into this logically, it would change..(or maybe im wrong)

 

but my other question is,

how would the compiler interpret it as?

 

thanks,

The Pentium Guy

[Robby]

Hopefully A and B are both Boolean type, because Option Strict would complain.

[dynamic_sysop]

if you picture a Boolean then this is what's happening...

first case:

'/// if neither of the Booleans ( A and B ) are True
If Not A And B Then
   '///do something because both are False
End If

 

in the second case:

'/// if either a is False , or b is False
If Not(a Or b) Then
   '///do something because either a or b are False
End If

 

hope it helps clear things a bit.

[ThePentiumGuy]

Hopefully A and B are both Boolean type, because Option Strict would complain.

 

they are booleans.

 

thankks dynamic_soup

 

that did clear things up. So basically, when u removed the parenthesees, the Or changed to an And :)

[Robby]

When you remove the () it is thae same as ...

If Not a Or Not b Then