Create a Boolean Calculator
Python, 3 bytes ÷ 1 op = score 3

min

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Implements AND, with inputs like [&quot;1&quot;, &quot;AND&quot;, &quot;0&quot;, &quot;AND&quot;, &quot;0&quot;]. Simply takes the smallest string value, which is &quot;0&quot; if present and &quot;1&quot; otherwise. Since &quot;AND&quot; is later alphabetically, it can be ignored.
Another solution is all, using inputs like [1, &quot;AND&quot;, 0, &quot;AND&quot;, 0] since only 0 is Falsey. Python 2 could also do min with such inputs, since it has numbers as smaller than strings, whereas Python 3 refuses to compare them.