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I keep confusing myself about how the word nor operates in conditional reasoning. If someone could explain it to me, that would be so helpful! I feel like I want to treat the "nor" like "and" and then use "or" in the contrapositive, but I think treating it like "or" is correct?

Example: "If T volunteers, then neither Felicia nor Veena volunteers"

If T, then not F AND not V
CP: If F or V, then not T

ETA: Formal logic symbols

T ⇒ ~F & ~V
F ∨ V ⇒ ~T

Nor is just a way of saying "and" when the factors are both negatives (i.e. that something will NOT happen)

Always works out to this:

If A --> NOT B and NOT C