Some definitions of interest.
ma-join	Def M1  M2 Def == mk-ma(1of(M1)  1of(M2); Def == mk-ma(1of(2of(M1))  1of(2of(M2)); Def == mk-ma(1of(2of(2of(M1)))  1of(2of(2of(M2))); Def == mk-ma(1of(2of(2of(2of(M1))))  1of(2of(2of(2of(M2)))); Def == mk-ma(1of(2of(2of(2of(2of(M1)))))  1of(2of(2of(2of(2of(M2))))); Def == mk-ma(1of(2of(2of(2of(2of(2of(M1))))))  1of(2of(2of(2of(2of(2of( Def == mk-ma(1of(2of(2of(2of(2of(2of(M1))))))  1of(M2)))))); Def == mk-ma(1of(2of(2of(2of(2of(2of(2of( Def == mk-ma(1of(M1)))))))  1of(2of(2of(2of(2of(2of(2of(M2))))))); Def == mk-ma(1of(2of(2of(2of(2of(2of(2of(2of( Def == mk-ma(1of(M1))))))))  1of(2of(2of(2of(2of(2of(2of(2of(M2)))))))))
msg-form	Def MsgAForm Def == x:Id fp-> Topx:Knd fp-> Typex:Id fp-> Topx:Id fp-> Top Def == x:KndId fp-> Topx:KndIdLnk fp-> Topx:Id fp-> Topx:IdLnkId fp-> Top Def == Top

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