Am 17.02.2025 um 17:09 schrieb Ursula Hermann:

Dear List,

There is a formula in my example, after the text, (vi) Wir berechnen …, in the next line left should be the formula

setuppapersize[A4,width=19cm,height=24cm]]

\setcounter[userpage][439]

\setupbodyfont[, 12.95pt]

\setuplayout[backspace=2.9cm,              width=13.50cm]

\defineenumeration   [theorem]   [     text=Theorem,     title=yes,     width=fit,     distance=0.2em,     alternative=serried,   ]

\definetextbackground[GrayBackground][   location=paragraph,   background=color,   backgroundcolor=lightgray,   leftoffset=.5\bodyfontsize,   rightoffset=.5\bodyfontsize,   topoffset=.5\bodyfontsize,   bottomoffset=.5\bodyfontsize,   frame=off,]

\starttext

\blackrule[color=black, height=0.10ex, width=13.50cm]\dontleavehmode

\inrightmargin{\blackrule[color=black, height=0.10ex, width=1.11cm]\par {\bf 7.3.53}}

\usecolors[svg]

\setupinteraction   [state=start,    contrastcolor=cornflowerblue]

\reference[Abschnitt:1]{7.3.52}

{\bi Beweis (von Proposition \goto{7.3.53} [Abschnitt:1]). \tf Die Eigenschaften (i)-(iii) fol-\par gen unmittelbar durch leichte Rechnung aus der Definition. \blank (iv)  \quad Wir berechnen \m {u × (v × w)}:

\startformula  \startalign[n=2, align={1: right, 2: right}] \NC u \times (v \times \ w) \NC =  u \times \pmatrix{v_2w_3  -  v_3w_2} \NR  \stopalign \stopformula

\stoptext

but the alignment is not right, because the formula should be more on the left.  What is the right way now?

Add \showframe at start of your document to see how much space is at both sides of the formula, when I do this with your document (after adding the missing "}") the space on both sides is the same. Wolfgang