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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 9540 |
. 2
| |
| 2 | 9nn 9240 |
. . . . . 6
| |
| 3 | 1nn 9082 |
. . . . . 6
| |
| 4 | nnaddcl 9091 |
. . . . . 6
| |
| 5 | 2, 3, 4 | mp2an 426 |
. . . . 5
|
| 6 | 5 | nncni 9081 |
. . . 4
|
| 7 | 6 | mulridi 8109 |
. . 3
|
| 8 | 7 | oveq1i 5977 |
. 2
|
| 9 | 6 | addridi 8249 |
. 2
|
| 10 | 1, 8, 9 | 3eqtrri 2233 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 711 ax-5 1471 ax-7 1472 ax-gen 1473 ax-ie1 1517 ax-ie2 1518 ax-8 1528 ax-10 1529 ax-11 1530 ax-i12 1531 ax-bndl 1533 ax-4 1534 ax-17 1550 ax-i9 1554 ax-ial 1558 ax-i5r 1559 ax-ext 2189 ax-sep 4178 ax-cnex 8051 ax-resscn 8052 ax-1cn 8053 ax-1re 8054 ax-icn 8055 ax-addcl 8056 ax-addrcl 8057 ax-mulcl 8058 ax-mulcom 8061 ax-addass 8062 ax-mulass 8063 ax-distr 8064 ax-1rid 8067 ax-0id 8068 ax-cnre 8071 |
| This theorem depends on definitions: df-bi 117 df-3an 983 df-tru 1376 df-nf 1485 df-sb 1787 df-clab 2194 df-cleq 2200 df-clel 2203 df-nfc 2339 df-ral 2491 df-rex 2492 df-rab 2495 df-v 2778 df-un 3178 df-in 3180 df-ss 3187 df-sn 3649 df-pr 3650 df-op 3652 df-uni 3865 df-int 3900 df-br 4060 df-iota 5251 df-fv 5298 df-ov 5970 df-inn 9072 df-2 9130 df-3 9131 df-4 9132 df-5 9133 df-6 9134 df-7 9135 df-8 9136 df-9 9137 df-dec 9540 |
| This theorem is referenced by: dfdec10 9542 10nn 9554 le9lt10 9565 decsucc 9579 5p5e10 9609 6p4e10 9610 7p3e10 9613 8p2e10 9618 9p2e11 9625 10m1e9 9634 9lt10 9669 sq10e99m1 10895 3dvds 12290 3dvdsdec 12291 3dvds2dec 12292 |
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