|Parameters||c, a character|
|Purpose||Determines whether c is an uppercase letter.|
|Produces||A truth value: true (|
|Preconditions||Only one parameter (verified).|
c is a character (verified).
> (char-upper-case? #\a) #f > (char-upper-case? #\C) #t > (char-upper-case? #\?) #f > (char-upper-case? 10) char-upper-case?: expects argument of type <character>; given 10 > (char-upper-case? #\a #\C) char-upper-case?: expects 1 argument, given 2: #\a #\C
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