text: argument is made up of a chain of simple arguments. This means that the conclusion of one argument acts 
  as a premise of later arguments. For a complex argument to be successful, each link of the chain has to be 
  successful.[43] 
  
  Arguments and inferences are either 
  correct or incorrect. If they are correct 
  their 
  their premises support 
  then 
  conclusion. In the incorrect case, this 
  support 
  take 
  different forms corresponding to the 
  different types of reasoning.[62] The 
  strongest form of support corresponds 
  to deductive reasoning. But even 
  arguments that are not deductively 
  valid may still be good arguments 
  their premises offer non- 
  because 
  deductive support to their conclusions. 
  For such cases, the term*ampliative*or 
  used.[63] 
  *inductive*
  Deductive arguments are associated 
  with formal logic in contrast to the 
  relation between ampliative arguments and informal logic.[64] 
  
  is missing.  It can 
  
  Argument terminology used in logic 