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LowerCaseQ[string]

yields True if all the characters in the string are lowercase letters, and yields False otherwise.

Details
Details and Options Details and Options
Examples  
Basic Examples  
Scope  
Properties & Relations  
Possible Issues  
Neat Examples  
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LowerCaseQ

LowerCaseQ[string]

yields True if all the characters in the string are lowercase letters, and yields False otherwise.

Details

  • LowerCaseQ treats both ordinary and special characters.

Examples

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Basic Examples  (1)

Test whether a character is a lowercase letter:

Scope  (4)

Test whether all characters in a string are lowercase letters:

Accented letters are still treated as letters:

Gothic letters are treated as letters:

Greek letters are treated as letters:

Properties & Relations  (2)

All characters treated as lowercase letters:

No letters are both uppercase and lowercase:

Possible Issues  (1)

Some letters are neither uppercase nor lowercase:

Neat Examples  (1)

Find all letters that are neither uppercase nor lowercase:

Wolfram Research (1991), LowerCaseQ, Wolfram Language function, https://reference.wolfram.com/language/ref/LowerCaseQ.html (updated 1996).

Text

Wolfram Research (1991), LowerCaseQ, Wolfram Language function, https://reference.wolfram.com/language/ref/LowerCaseQ.html (updated 1996).

CMS

Wolfram Language. 1991. "LowerCaseQ." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 1996. https://reference.wolfram.com/language/ref/LowerCaseQ.html.

APA

Wolfram Language. (1991). LowerCaseQ. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/LowerCaseQ.html

BibTeX

@misc{reference.wolfram_2025_lowercaseq, author="Wolfram Research", title="{LowerCaseQ}", year="1996", howpublished="\url{https://reference.wolfram.com/language/ref/LowerCaseQ.html}", note=[Accessed: 15-August-2025]}

BibLaTeX

@online{reference.wolfram_2025_lowercaseq, organization={Wolfram Research}, title={LowerCaseQ}, year={1996}, url={https://reference.wolfram.com/language/ref/LowerCaseQ.html}, note=[Accessed: 15-August-2025]}