matita/contribs/LOGIC/datatypes_props/Sequent.ma

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  14
  15
  16
  17 include "datatypes_defs/Sequent.ma".
  18
  19 theorem linj_inj: \forall a,c. linj a = linj c \to a = c.
  20  intros; whd in H:(? ? % %); destruct; autobatch.
  21 qed.
  22
  23 theorem rinj_inj: \forall b,d. rinj b = rinj d \to b = d.
  24  intros; whd in H:(? ? % %); destruct; autobatch.
  25 qed.