Question about manual content: example(append); example("lambda");



line manual(Help) we have:

example(append);
example("lambda");

My question is why 'example("lambda")' work and 'example(lambda)' not work?

Why both 'example("append")' and 'example(append)' work?

Do you know what is the difference betweem append and lambda for the
"example" command?

Do you know why the "example" command treat append not equal to lambda?

Sorry for many questions. It is an effort to make the doubt clear.

Thanks for your time.
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