COMMENT ⊗ VALID 00002 PAGES C REC PAGE DESCRIPTION C00001 00001 C00002 00002 C00003 ENDMK C⊗; αXDEFINE FT2⊗↔ αeα⊗=⊗⊗αdα⊗=\cr⊗↔αlαβ⊗↓ αXDEFINE ∩⊗↔ α(α)αβ⊗↓