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Not so Bealzebub!
Are you suggesting that you could apply reverse thrust with the nose wheel in the air, not so, below is the AMM32-09-02 reference for air ground sensing:
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Although I was referring to the spoiler deployment, since you bring up the point, I am afraid you are not correct yet again. The reversers will deploy with the nose wheel in the air. This is because the portion of the Air/Ground sensing system utilised is the main gear untilt. That is (a) in the reference you have provided.