1162.lean:10:12: error: equation compiler error, equation #2 has not been used in the compilation, note that the left-hand-side of equation #1 is a variable
1162.lean:11:12: error: equation compiler error, equation #3 has not been used in the compilation, note that the left-hand-side of equation #1 is a variable
1162.lean:12:12: error: equation compiler error, equation #4 has not been used in the compilation, note that the left-hand-side of equation #1 is a variable
