write vs create mentally

write and create mentally both are verbs.

Word	Noun	Adjective	Verb	Adverb
write	No	No	Yes	No
create mentally	No	No	Yes	No

As verbs, create mentally is a hypernym of write; that is, create mentally is a word with a broader meaning than write:

write: create code, write a computer program
create mentally: create mentally and abstractly rather than with one's hands

Other hypernyms of write include create by mental act.

write (verb)	create mentally (verb)
communicate or express by writing	create mentally and abstractly rather than with one's hands
record data on a computer
contact in writing
produce a literary work
mark or trace words or symbols on a surface
write or name the letters that comprise the conventionally accepted form of (a word or part of a word)
write music
create code, write a computer program