Forum:Vayu VS Solemn Judgment

Vayu the Emblem of Honor: If this card is face up on the field, you cannot use it for a Synchro Summon. If this card is in your Graveyard, you can remove from play this card plus 1 non-Tuner "Blackwing" monster in your Graveyard, and Special Summon 1 "Blackwing" Synchro Monster from your Extra Deck whose Level equals the total Levels of the removed monsters. The effect(s) of that Synchro Monster is negated.

Solemn Judgment: Pay half your Life Points. Negate the activation of a Spell/Trap Card/Normal Summon/Flip Summon/Special Summon and destroy the Spell Card, Trap Card or Summoned Monster.

My friend says that because you're using an effect to Special Summon the Synchro Monster that you can't use Solemn Judgment. I think that since it's a Special Summon and Solemn Judgment negates a Special Summon, that it should be fine and should destroy the Special Summoned monster. What happens?