Automatic wing anti–icing operation is inhibited when all the following conditions exist:
• TAKEOFF mode is selected, and
• wing icing conditions exist, and
• less than 10 minutes has elapsed after liftoff
As the first word indicates, the FCOM is taking about automatic operation. In Auto, the system will only command the WAI valves to open when icing coditions are detected. If there is no icing detected the valves will not be commanded to open & therefore the system
does not need to be inhibited.
A bit of a given & really doesn't need to be included in the FCOM statement. Including it as condition #2 just causes confusion, as evidenced by the original post.