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EXAMPL08.PRO
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Text File
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1986-10-07
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210b
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12 lines
/* Program 8 */
/*
Goals to enter are on page 37 of the manual.
*/
predicates
isletter(char)
clauses
isletter(Ch) if Ch <= 'z' and 'a' <= Ch.
isletter(Ch) if Ch <= 'Z' and 'A' <= Ch.