ˈiː sˈɛvən ɐ hˈæf hɐz dᵻmˈɛnʃən wˈʌnhˈʌndɹɪd nˈaɪnti, ænd ɪz nˌɑːt sˈɪmpəl: æz ɐ ɹˌɛpɹᵻzˈɛntˈeɪʃən ʌv ɪts sˈʌbɐldʒˌɛbɹə ˈiː sˈɛvən, ɪt splˈɪts æz , wˈɛɹ
E7½ has dimension 190, and is not simple: as a representation of its subalgebra E7, it splits as , where