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| Mirrors > Home > ILE Home > Th. List > 9t7e63 | Unicode version | ||
| Description: 9 times 7 equals 63. (Contributed by Mario Carneiro, 19-Apr-2015.) |
| Ref | Expression |
|---|---|
| 9t7e63 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 9nn0 9321 |
. 2
| |
| 2 | 6nn0 9318 |
. 2
| |
| 3 | df-7 9102 |
. 2
| |
| 4 | 9t6e54 9631 |
. 2
| |
| 5 | 5nn0 9317 |
. . 3
| |
| 6 | 4nn0 9316 |
. . 3
| |
| 7 | eqid 2205 |
. . 3
| |
| 8 | 5p1e6 9176 |
. . 3
| |
| 9 | 3nn0 9315 |
. . 3
| |
| 10 | 1 | nn0cni 9309 |
. . . 4
|
| 11 | 6 | nn0cni 9309 |
. . . 4
|
| 12 | 9p4e13 9594 |
. . . 4
| |
| 13 | 10, 11, 12 | addcomli 8219 |
. . 3
|
| 14 | 5, 6, 1, 7, 8, 9, 13 | decaddci 9566 |
. 2
|
| 15 | 1, 2, 3, 4, 14 | 4t3lem 9602 |
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-in1 615 ax-in2 616 ax-io 711 ax-5 1470 ax-7 1471 ax-gen 1472 ax-ie1 1516 ax-ie2 1517 ax-8 1527 ax-10 1528 ax-11 1529 ax-i12 1530 ax-bndl 1532 ax-4 1533 ax-17 1549 ax-i9 1553 ax-ial 1557 ax-i5r 1558 ax-14 2179 ax-ext 2187 ax-sep 4163 ax-pow 4219 ax-pr 4254 ax-setind 4586 ax-cnex 8018 ax-resscn 8019 ax-1cn 8020 ax-1re 8021 ax-icn 8022 ax-addcl 8023 ax-addrcl 8024 ax-mulcl 8025 ax-addcom 8027 ax-mulcom 8028 ax-addass 8029 ax-mulass 8030 ax-distr 8031 ax-i2m1 8032 ax-1rid 8034 ax-0id 8035 ax-rnegex 8036 ax-cnre 8038 |
| This theorem depends on definitions: df-bi 117 df-3an 983 df-tru 1376 df-fal 1379 df-nf 1484 df-sb 1786 df-eu 2057 df-mo 2058 df-clab 2192 df-cleq 2198 df-clel 2201 df-nfc 2337 df-ne 2377 df-ral 2489 df-rex 2490 df-reu 2491 df-rab 2493 df-v 2774 df-sbc 2999 df-dif 3168 df-un 3170 df-in 3172 df-ss 3179 df-pw 3618 df-sn 3639 df-pr 3640 df-op 3642 df-uni 3851 df-int 3886 df-br 4046 df-opab 4107 df-id 4341 df-xp 4682 df-rel 4683 df-cnv 4684 df-co 4685 df-dm 4686 df-iota 5233 df-fun 5274 df-fv 5280 df-riota 5901 df-ov 5949 df-oprab 5950 df-mpo 5951 df-sub 8247 df-inn 9039 df-2 9097 df-3 9098 df-4 9099 df-5 9100 df-6 9101 df-7 9102 df-8 9103 df-9 9104 df-n0 9298 df-dec 9507 |
| This theorem is referenced by: 9t8e72 9633 |
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