Not in a curse but in a hortatory appeal.
How much interest casts the balance in cases dubious!
to take wing
To see this, first check that 𝜎(X_0,X_1,…)=𝜎(ℱ_0), where ℱ_0:=∪ ᪲ₖ₌₀𝜎(X_0,…,X_k) is a field and, in particular, a boldsymbol 𝜋-system.
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