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The Maxima on-line user's manual

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Symbolp

Function: symbolp (<expr>) Returns true if <expr> is a symbol, else false. In effect, symbolp(x) is equivalent to the predicate atom(x) and not numberp(x).

sublist_indices ( 0, 1 < 0, 2 < 1, 2 > 1, 2 > 0], identity); assume (x < -1); map (maybe, [x > 0, x < 0, x < -2]); sublist_indices ([x > 0, x < 0, x < -2], identity); ' title='Symbolp Example' width='30%' />

See also *note Identifiers::.

(%o1)                                true
(%i2) 

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