The main principles of the Copenhagen interpretation are: A system is completely described by a wave function, usually represented by the Greek letter ψ {\displaystyle \psi } ("psi").
Aturan utama interpretasi Kopenhagen adalah: Sistem sepenuhnya dijelaskan dengan fungsi gelombang, biasanya dinyatakan dengan huruf Yunani ψ {\displaystyle \psi } ("psi").