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Mirrors > Home > ILE Home > Th. List > 9p1e10 | Unicode version |
Description: 9 + 1 = 10. (Contributed by Mario Carneiro, 18-Apr-2015.) (Revised by Stanislas Polu, 7-Apr-2020.) (Revised by AV, 1-Aug-2021.) |
Ref | Expression |
---|---|
9p1e10 | ; |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-dec 9176 | . 2 ; | |
2 | 9nn 8881 | . . . . . 6 | |
3 | 1nn 8724 | . . . . . 6 | |
4 | nnaddcl 8733 | . . . . . 6 | |
5 | 2, 3, 4 | mp2an 422 | . . . . 5 |
6 | 5 | nncni 8723 | . . . 4 |
7 | 6 | mulid1i 7761 | . . 3 |
8 | 7 | oveq1i 5777 | . 2 |
9 | 6 | addid1i 7897 | . 2 |
10 | 1, 8, 9 | 3eqtrri 2163 | 1 ; |
Colors of variables: wff set class |
Syntax hints: wceq 1331 wcel 1480 (class class class)co 5767 cc0 7613 c1 7614 caddc 7616 cmul 7618 cn 8713 c9 8771 ;cdc 9175 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2119 ax-sep 4041 ax-cnex 7704 ax-resscn 7705 ax-1cn 7706 ax-1re 7707 ax-icn 7708 ax-addcl 7709 ax-addrcl 7710 ax-mulcl 7711 ax-mulcom 7714 ax-addass 7715 ax-mulass 7716 ax-distr 7717 ax-1rid 7720 ax-0id 7721 ax-cnre 7724 |
This theorem depends on definitions: df-bi 116 df-3an 964 df-tru 1334 df-nf 1437 df-sb 1736 df-clab 2124 df-cleq 2130 df-clel 2133 df-nfc 2268 df-ral 2419 df-rex 2420 df-rab 2423 df-v 2683 df-un 3070 df-in 3072 df-ss 3079 df-sn 3528 df-pr 3529 df-op 3531 df-uni 3732 df-int 3767 df-br 3925 df-iota 5083 df-fv 5126 df-ov 5770 df-inn 8714 df-2 8772 df-3 8773 df-4 8774 df-5 8775 df-6 8776 df-7 8777 df-8 8778 df-9 8779 df-dec 9176 |
This theorem is referenced by: dfdec10 9178 10nn 9190 le9lt10 9201 decsucc 9215 5p5e10 9245 6p4e10 9246 7p3e10 9249 8p2e10 9254 9p2e11 9261 10m1e9 9270 9lt10 9305 sq10e99m1 10453 3dvdsdec 11551 3dvds2dec 11552 |
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