The subproof is completed by applying OSNo_Octonion_i0.
The subproof is completed by applying OSNo_Complex_i.
The subproof is completed by applying OSNo_Octonion_i3.
Apply OSNo_mul_OSNo with
Octonion_i0,
Complex_i leaving 2 subgoals.
The subproof is completed by applying L0.
The subproof is completed by applying L1.