bbPress.org

Hi!
Thank you for the !is_bbpress() code, that works perfectly with Widget Logic plugin.
My trouble is: I’d like to specify more that one condition, e.g :
!is_page(‘page_name’) || !is_bbpress()

Unfortunatly, !is_bbpress code is not interpreted anymore when using this condition (the widget appears in the sidebar of all pages of the forum).
Any idea about what I should do to make it work?