T18609.hs:36:25: warning: [GHC-94210] [-Woverlapping-patterns (in -Wdefault)]
    Pattern match has inaccessible right hand side
    In an equation for ‘invZero’: invZero !_ !_ | False = ...

T18609.hs:51:20: warning: [GHC-94210] [-Woverlapping-patterns (in -Wdefault)]
    Pattern match has inaccessible right hand side
    In an equation for ‘f’: f !_ !_ !_ !_ !_ | False = ...

T18609.hs:59:35: warning: [GHC-94210] [-Woverlapping-patterns (in -Wdefault)]
    Pattern match has inaccessible right hand side
    In an equation for ‘g’:
        g !_ !_ !_ !_ !_ !_ !_ !_ !_ !_ | False = ...