Theorem zmod01 | index | src |

theorem zmod01 (a: nat): $ 0 %Z a = 0 $;
StepHypRefExpression
1 eqtr3
b0 0 %Z a = 0 %Z a -> b0 0 %Z a = 0 -> 0 %Z a = 0
2 zmodeq1
b0 0 = 0 -> b0 0 %Z a = 0 %Z a
3 b00
b0 0 = 0
4 2, 3 ax_mp
b0 0 %Z a = 0 %Z a
5 1, 4 ax_mp
b0 0 %Z a = 0 -> 0 %Z a = 0
6 eqtr
b0 0 %Z a = 0 % a -> 0 % a = 0 -> b0 0 %Z a = 0
7 zmodb0
b0 0 %Z a = 0 % a
8 6, 7 ax_mp
0 % a = 0 -> b0 0 %Z a = 0
9 mod01
0 % a = 0
10 8, 9 ax_mp
b0 0 %Z a = 0
11 5, 10 ax_mp
0 %Z a = 0

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)