Key legal question
Whether the employer could invalidate the social plan severance clause for fundamental mistake or intentional deception.
Extracted holding
The employer could not rely on mistake or intentional deception to avoid the normative social plan provision benefiting the employee.
Extracted reasoning
The alleged non-disclosure concerned a potential collective challenge over the consultation period, but this did not create a legally relevant causal error vis-à-vis individual employees. The employee could not recognize any hidden condition, and the employer had not insisted on a clause clarifying the treatment of statutory termination compensation. The required conditions for a valid mistake claim were therefore not met.