How can I express the NOT in terms of AND, XOR, XNOR
121732
Functional completeness of $\{\text{or},\text{ xor}, \text{ xnor}\}$
71704
Conjunctions in negation: "no/neither" and "and/or/nor"
68434
Typesetting of negative versus minus?
128711
$(\Bbb Z\oplus \Bbb Z)[X] \not\cong \Bbb Z[X]\oplus \Bbb Z[X]\,$?
111657
Difference between "if x" and "if x is not None"
99929
express in words without using the symbol N
153770
How to type NOT \delta and NOT \ll
124732
Finding a nonempty subset that is not a subgroup
180
"Neither", "none", "no one" + [of them] + verb-s
17710
How do you get the logical xor of two variables in Python?
38958
How do "and" and "or" act with non-boolean values?
41529
Can "nor" be used without "neither"?
37706
Using "nor" in a list without "neither"
47279
How to choose a proper contraction "it's not" versus "it isn't"?
50615
Expressing a Non Negative Integer as Sums of Two Squares
95734
Check if something is (not) in a list in Python
50045
Words similar to 'either' and 'neither' for 3 items