Viscardi DP. The Generalized Parallelism Theorem for Real and Vector-Valued Functions: A Geometric and Functional Approach to Non-Intersection Conditions. Leonardo da Vinci Journal [Internet]. 2 luglio 2025 [citato 17 aprile 2026];5(1):ahead of print. Available at: https://www.scientificeditorial.com/index.php/LDVJ/article/view/The-Generalized-Parallelism-Theorem-for-Real-and-Vector-Valued-F