: (cre + ann).comp (cre + ann) - (cre - ann).comp (cre - ann) = (2 : ℂ) • (cre.comp ann + ann.comp cre)

Initializing...

: (cre + ann).comp (cre + ann) - (cre - ann).comp (cre - ann) = (2 : ℂ) • (cre.comp ann + ann.comp cre) · Prove2Me