I have distilled another problem which definitely has nothing to do with
atomization:
lemma "\<And>(x\<Colon>'a::type) m n.
P x \<Longrightarrow> Suc (2 * m) = 2 * n \<Longrightarrow> False"
apply (atomize (full))
apply presburger
done
lemma "\<And>(x\<Colon>'a::type) m n.
Q x \<Longrightarrow> P x \<Longrightarrow> Suc (2 * m) = 2 * n
\<Longrightarrow> False"
apply (atomize (full))
apply presburger?
oops
Additional premises considered harmful?
Florian
--
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