Problem: snidge triangle edition

Code: snidge+triangle+edition/tails_1650505436

Nibbles version: 0.2 | 0.21 | 0.22 | 0.23 | 0.24 | 0.25 | 1.00

Format: Compact | Simple | +Type | Table | JSON | .nbl (DeBruijn) | .nbl (names)

/ (foldr) -->let( E ) 
    \ (reverse) 
        , (range from 1) 
            15 (integer) 
    ~ (tuple) 
        ;@ (= allLines) 
        ^ (replicate) 
            ~ (auto = infinity) 
            "snidge" (string) 
    (implicit tuple) <--arg( C B A ) 
        : (append) 
            @ (= B) 
            `< (take also drop) -->let( D ) 
                $ (= C) 
                _ (= A) 
        (implicit arg = D)