refrain from auxiliary abbreviation: be more explicit to the reader in situations where syntax translation does not apply; uniform appearance of xsymbol and HTML output for sums
refrain from auxiliary abbreviation: be more explicit to the reader in situations where syntax translation does not apply;
uniform appearance of xsymbol and HTML output for sums

MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle,MerelyAPseudonym/isabelle