Theorem ltpr2tr | index | src |

theorem ltpr2tr (a b c: nat): $ a < c $ > $ a < b, c $;
StepHypRefExpression
1 ltletr
a < c -> c <= b, c -> a < b, c
2 hyp h
a < c
3 1, 2 ax_mp
c <= b, c -> a < b, c
4 leprid2
c <= b, c
5 3, 4 ax_mp
a < b, c

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 (peano1, peano2, peano5, addeq, muleq, add0, addS, mul0, mulS)