RUMBLETiGER
Adventurer
Cure Light Wounds is a Conjuration spell. My understanding of the flavor of spell schools and a Wizard's ability to specialize in them suggests some familiarity with a spell style, even if it's not on one's list.
If said Wizard had a prohibited school, I could see houseruling that he might not be able to identify spells of that school, or increasing the DC to do so.
If one is going to Houserule, I could see possibly increasing the DC to succeed on identifying a spell, etc. by some static or variable-by-level amount for the opposing discipline. If you've developed the skill to study magic, you should be rewarded by actually being able to do so.
And, as Dandu has cleverly pointed out, sometimes the same spell spans both disciplines. What does one do then?
If said Wizard had a prohibited school, I could see houseruling that he might not be able to identify spells of that school, or increasing the DC to do so.
If one is going to Houserule, I could see possibly increasing the DC to succeed on identifying a spell, etc. by some static or variable-by-level amount for the opposing discipline. If you've developed the skill to study magic, you should be rewarded by actually being able to do so.
And, as Dandu has cleverly pointed out, sometimes the same spell spans both disciplines. What does one do then?