Boolean equivalence <p>Rewrite the negation of <code>a and b</code> using <code>or</code>. Here a and b are propositions.</p><p>[[input:ans]] [[validation:ans]] [[feedback:prt1]]</p> <p>A reference answer is \({@ta@}\).</p> 1 0.1 0 2021072200 ta:not(a and b); <p>[[feedback:prt1]]</p> Boolean equivalence 1 0 0 *10 none 1 i cos-1 lang [ 0 ans algebraic ta 18 1 0 0 1 0 1 1 1 prt1 1.0000000 0 1 0 AlgEquiv ans ta 0 = 1.0000000 -1 prt1-0-T <p>Correct.</p> = 0.0000000 -1 prt1-0-F <p>This answer is not equivalent to the reference.</p> 17 29 47 1 Equivalent answer ans not a or not b prt1 1 0 prt1-0-T 2 Equivalent answer ans nounnot(a) nounor nounnot(b) prt1 1 0 prt1-0-T 3 Equivalent answer ans not(a and b) prt1 1 0 prt1-0-T 4 Incorrect candidate ans not a and not b prt1 0 0.1 prt1-0-F