Changes

{{#vardefine: varFirstPageNumberFormatSubtypesTopicTitle|{{ExtractFirstPageNumber|pagesterm=xi-xvi|}}|Some Term}}

roman: {{#tag: roman|{{#var: varFirstPageNumber}}FormatSupertypesTopicTitle|term=Some Term}}

{{#vardefine: varFirstPageNumberArabic|{{formatnum:{{#tag: romannegative|{{#var: varFirstPageNumber}}|}}|R}} FormatExistenceTopicTitle|term=Some Term}}

roman negative:{{#var: varFirstPageNumberArabicFormatAssociationsTopicTitle|term=Some Term}}

is {{#ask: [[Theory Rejection theorem (Barseghyan-2015)]] |?Description |mainlabel=- | }} {{#vardefine: varFirstPageNumber|{{ExtractFirstPageNumber|pages=123-245|}}|}} first page number: {{#var: varFirstPageNumber}}  {{#if: {{IsNumber|value={{#var: varFirstPageNumberArabicvarFirstPageNumber}}|}}<!--

-->yes {{#set:First Page={{#var: varFirstPageNumber}}|}}<!--

-->no {{#set:First Page=0|}}<!--

-->}}

Saving the page numberroman: {{#roman: {{#var: varFirstPageNumber}}}}roman negative: {{#setromannegative:First Page={{#var:varFirstPageNumberArabicvarFirstPageNumber}}}}