May an individual reciting the Shacharit Amidah say Kedushah with the congregation if the congregation is saying Kedushah of Musaf (Keter/Ne'aritzcha)?
Synopsis
The Mechaber prohibits it, holding that the Kedushahs are not equivalent because one is in Shacharit and the other in Musaf. The Rema permits it, ruling both are Amidah Kedushahs and thus equivalent.
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Discussion
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