Theorem greceq1 ≪ | index | src | ≫ 

theorem greceq1 (_z1 _z2: nat) (K F: set) (n k: nat):
  $ _z1 = _z2 -> grec _z1 K F n k = grec _z2 K F n k $;
StepHypRefExpression
1 id 
_z1 = _z2 -> _z1 = _z2
2 1 greceq1d 
_z1 = _z2 -> grec _z1 K F n k = grec _z2 K F n k

Axiom use

axs_prop_calc (ax_1, ax_2, ax_3, ax_mp, itru), axs_pred_calc (ax_gen, ax_4, ax_5, ax_6, ax_7, ax_10, ax_11, ax_12), axs_set (elab, ax_8), axs_the (theid, the0), axs_peano (peano2, addeq, muleq)