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  _  __     ___      _  _    __   __    ______  
 | |/ //   / _ \\   | \| ||  \ \\/ //  /_____// 
 | ' //   | / \ ||  |  ' ||   \ ` //   `____ `  
 | . \\   | \_/ ||  | .  ||    | ||    /___//   
 |_|\_\\   \___//   |_|\_||    |_||    `__ `    
 `-` --`   `---`    `-` -`     `-`'    /_//     
                                       `-`

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Text this: Real equiangular lines in dimension 18 and the Jacobi identity for complementary subgraphs