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Mirrors > Home > ILE Home > Th. List > 7p5e12 | GIF version |
Description: 7 + 5 = 12. (Contributed by Mario Carneiro, 19-Apr-2015.) |
Ref | Expression |
---|---|
7p5e12 | ⊢ (7 + 5) = ;12 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 7nn0 9174 | . 2 ⊢ 7 ∈ ℕ0 | |
2 | 4nn0 9171 | . 2 ⊢ 4 ∈ ℕ0 | |
3 | 1nn0 9168 | . 2 ⊢ 1 ∈ ℕ0 | |
4 | df-5 8957 | . 2 ⊢ 5 = (4 + 1) | |
5 | df-2 8954 | . 2 ⊢ 2 = (1 + 1) | |
6 | 7p4e11 9435 | . 2 ⊢ (7 + 4) = ;11 | |
7 | 1, 2, 3, 4, 5, 6 | 6p5lem 9429 | 1 ⊢ (7 + 5) = ;12 |
Colors of variables: wff set class |
Syntax hints: = wceq 1353 (class class class)co 5868 1c1 7790 + caddc 7792 2c2 8946 4c4 8948 5c5 8949 7c7 8951 ;cdc 9360 |
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 614 ax-in2 615 ax-io 709 ax-5 1447 ax-7 1448 ax-gen 1449 ax-ie1 1493 ax-ie2 1494 ax-8 1504 ax-10 1505 ax-11 1506 ax-i12 1507 ax-bndl 1509 ax-4 1510 ax-17 1526 ax-i9 1530 ax-ial 1534 ax-i5r 1535 ax-14 2151 ax-ext 2159 ax-sep 4118 ax-pow 4171 ax-pr 4205 ax-setind 4532 ax-cnex 7880 ax-resscn 7881 ax-1cn 7882 ax-1re 7883 ax-icn 7884 ax-addcl 7885 ax-addrcl 7886 ax-mulcl 7887 ax-addcom 7889 ax-mulcom 7890 ax-addass 7891 ax-mulass 7892 ax-distr 7893 ax-i2m1 7894 ax-1rid 7896 ax-0id 7897 ax-rnegex 7898 ax-cnre 7900 |
This theorem depends on definitions: df-bi 117 df-3an 980 df-tru 1356 df-fal 1359 df-nf 1461 df-sb 1763 df-eu 2029 df-mo 2030 df-clab 2164 df-cleq 2170 df-clel 2173 df-nfc 2308 df-ne 2348 df-ral 2460 df-rex 2461 df-reu 2462 df-rab 2464 df-v 2739 df-sbc 2963 df-dif 3131 df-un 3133 df-in 3135 df-ss 3142 df-pw 3576 df-sn 3597 df-pr 3598 df-op 3600 df-uni 3808 df-int 3843 df-br 4001 df-opab 4062 df-id 4289 df-xp 4628 df-rel 4629 df-cnv 4630 df-co 4631 df-dm 4632 df-iota 5173 df-fun 5213 df-fv 5219 df-riota 5824 df-ov 5871 df-oprab 5872 df-mpo 5873 df-sub 8107 df-inn 8896 df-2 8954 df-3 8955 df-4 8956 df-5 8957 df-6 8958 df-7 8959 df-8 8960 df-9 8961 df-n0 9153 df-dec 9361 |
This theorem is referenced by: 7p6e13 9437 7t6e42 9472 |
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