What is ... and :?
782
What are the most common pitfalls awaiting new users?
2182
vs. . Which to use?
45656
What's the difference between semicolon and double ampersand &&
88779
Should there be a comma after 'and'?
101649
Can you use two "and"s in a sentence?
13001
What does ./ mean?
88296
Mathematical symbol for "and"
64194
Are =, , ==, !=, &&, and || used for arithmetic expressions or conditional expressions?
29419
'AND' vs '&&' as operator
17739
Which "mean" to use and when?
135926
Either X(s) or Y(s) is/are
36012
What is the difference between ./ and ../?
9173
What are the PHP operators "?" and ":" called and what do they do?
10475
Operator precedence for  And/&& in Ruby
132176
Precedence of && over ||
110165
What is "x && foo()"?
38958
How do "and" and "or" act with non-boolean values?