Theorem dvd11 | index | src |

theorem dvd11 (a: nat): $ 1 || a $;
StepHypRefExpression
1 idvd
a * 1 = a -> 1 || a
2 mul12
a * 1 = a
3 1, 2 ax_mp
1 || a

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_peano (peano2, peano5, addeq, muleq, add0, addS, mul0, mulS)