Properties of NOR
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Theorem
Let $\downarrow$ signify the NOR operation.
The following results hold:
NOR with Equal Arguments
- $p \downarrow p \dashv \vdash \neg p$
That is, the NOR of a proposition with itself corresponds to the negation operator.
NOR is Commutative
- $p \downarrow q \dashv \vdash q \downarrow p$
NOR is not Associative
- $p \downarrow \paren {q \downarrow r} \not \vdash \paren {p \downarrow q} \downarrow r$