fix(library/equations_compiler/util): typo
fix(library/equations_compiler/util): typo

fpvandoorn/lean,leanprover/lean,Kha/lean,digama0/lean,fpvandoorn/lean,leanprover-community/lean,Kha/lean,dselsam/lean,digama0/lean,dselsam/lean,leanprover/lean,leodemoura/lean,Kha/lean,leanprover/lean,leodemoura/lean,leanprover/lean,digama0/lean,leanprover-community/lean,leanprover-community/lean,leodemoura/lean,leodemoura/lean,leodemoura/lean,Kha/lean,leodemoura/lean,Kha/lean,dselsam/lean,leanprover/lean,fpvandoorn/lean,leanprover-community/lean,dselsam/lean,digama0/lean,leanprover-community/lean,leanprover/lean,dselsam/lean,fpvandoorn/lean,Kha/lean,fpvandoorn/lean,fpvandoorn/lean,digama0/lean,digama0/lean,dselsam/lean,leanprover-community/lean