Ch 8.2 A linear functional on the Hilbert space, written $\langle\psi|$. The bra corresponding to the ket $|\psi\rangle = c_1|1\rangle + c_2|2\rangle$ is $\langle\psi| = c_1^*\langle 1| + c_2^*\langle 2|$. The bra is the Hermitian conjugate of the ket. *Common confusion:* The bra is anti-linear in t