Good morning, I am looking to alleviate some confusion about the use of grade 1 indicator with the prime sign concerning the following:
A'B'C' - Did not use Gr1, as it is followed by the cap indicator
f'(x) - Did not use Gr1, as it is not followed by a letter or contraction
Based on the following:
10.6.6 Do not use the lower groupsign for "ea", "bb", "cc", "ff", or "gg" when the letters it represents are preceded or followed by a capitals indicator or a capitals terminator.
10.6.5 Use the lower groupsign for "ea", "bb", "cc", "ff", or "gg" when the letters it represents are both preceded and followed by a letter, a contraction, a modified letter or a ligatured letter unless other rules limit its use.
I would not use the grade 1 in A'B'C' as the cap indicator is used following the prime. As far as f'(x) I do not understand why the grade 1 indicator would need to be used as the letters f and x are not standing alone so cannot be misread and the prime cannot be misread as the double g or word were. I have attached a doc to show how I am typing (braille) this. Thanks so much in advance for your help and time!
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