metamath/valid/mathd-numbertheory-81.mm (
7
lines of code) (
raw
):
$( @{ @( (Contributed by Kunhao Zheng, 4-May-2021.) @) mathd-numbertheory-81 @p |- ( ph -> ( ; 7 1 mod 3 ) = 2 ) @= ? @. @} $)