ET TEST.TEX↔ αβXparen {↔ αXdefine ∩↔ α(α)αβ↓↔| R maxtex↔ \input test.tex↔| ET ?T.TEX↔ αβXparen {↔ αXdefine ∩↔ α(α)αβ↓↔| R maxtex↔ \input ?T.tex↔| xspool suai.XGP(37)/head/q/xgp/ntn=33/plimit=2↔|