I understand that, for an ideal opamp, Vo is bounded by Vee and Vcc (i.e.; Vee < Vo < Vcc).
But, what about the input voltage range? What is the allowed input voltage range in which opamp works normally? Can we apply Vn and Vi voltages which are below Vee or above Vcc? For single supply opamps, can we apply negative input voltages?
Does opamp being ideal, practical, rail to rail change the answer of this question?