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• → Protected

Protect

WMA link

Protect[$s_1$, $s_2$, ...]

sets the attribute Protected for the symbols si.

Protect[$str_1$, $str_2$, ...]

protects all symbols whose names textually match stri.

• • A = {1, 2, 3};

• • Protect[A]

• • A[[2]] = 4;

• • A