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1
vote
1answer
183 views

When were st, nd, rd, and th, first used [closed]

When were numeric contractions for ordinals first used, as in 1st, 2nd, 3rd, 6th instead of first, second, third, sixth?
12
votes
3answers
18k views

Do footnoting superscripts go inside or outside punctuation?

When using superscripts to indicate a footnote, do these fall inside or outside adjacent punctuation? If there is an answer, is that answer applicable worldwide, or just to specific regions or ...
4
votes
2answers
634 views

“20th century” vs. “20ᵗʰ century” [closed]

When writing twentieth century using an ordinal numeral, should the th part be in superscript? 20th century 20th century
4
votes
3answers
989 views

Why abbreviation for “Definition” as “Def^n” (math context)

I've seen in math and physics lectures delivered in English, that people use to abreviate the commonly very used word "Definition" by "Def n"(Def superscript n). What's the meaning of this n? That is, ...
1
vote
3answers
688 views

Phase transition: 1st order, first-order, 1 superscript st - order

I have read several articles from non-native speakers about phase transitions. They are roughly classified in different orders, depending on the behavior of thermodynamic potentials at the phase ...