Making where if you wear the armor you become immune to explosives

Create a procedure
Trigger: entity is attacked
if provided damage type = explosion
  if item in armor slot 3 = explosion immunity helmet
  And if item in armor slot 2 = explosion immunity chestplate
  And if item in armor slot 1 = explosion immunity leggings
  And if item in armor slot 0 = explosion immunity boots
      Then cancel procedure/trigger.