can_change_to_equal_succession_law_trigger

can_change_to_equal_succession_law_trigger = {
	trigger_if = {
		limit = {
			NOT = { has_realm_law_flag = can_change_succession_laws }
		}
		OR = {
			culture = { has_cultural_parameter = gender_equal_inheritance }
			rite = { rite_has_doctrine = doctrine_gender_equal }
		}
	}
	trigger_else = {
		can_change_succession_laws_realm_flag_trigger = yes
	}
	custom_description = {
		text = "no_powerful_vassal_with_negative_opinion"
		NOT = {
			any_vassal = {
				is_powerful_vassal = yes
				opposes_succession_law_change_trigger = yes
			}
		}
	}
}

As written in game/common/scripted_triggers/00_legal_triggers.txt.