Theorem ltled | index | src |

theorem ltled (G: wff) (a b: nat): $ G -> a < b $ > $ G -> a <= b $;
StepHypRefExpression
1 ltle
a < b -> a <= b
2 hyp h
G -> a < b
3 1, 2 syl
G -> a <= b

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, add0, addS)