commit 40e495

2026-03-27 22:18:22 Štěpán Zapadlo: Add set macro

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`a certain space/math test new.md` ..
@@ 3,6 3,7 @@
	\letThereBe{\addTag}{2}{\cssId{#1-#2}{\tag{#2}}} \letThereBe{\refTag}{2}{\href{###1-#2}{(\text{#2})}}
	\letThereBe{\eqT}{1}{\addTag{eq}{#1}}\letThereBe{\secT}{1}{\addTag{sec}{#1}}
	\letThereBe{\eqRef}{1}{\refTag{eq}{#1}} \letThereBe{\secRef}{1}{\refTag{sec}{#1}}
+	\letThereBe{\set}{1}{\left\{ #1 \right\}}
	\LetThereBe{\foo}{\mathrm{foo}}
	```