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| Mirrors > Home > ILE Home > Th. List > 6p5lem | GIF version | ||
| Description: Lemma for 6p5e11 9575 and related theorems. (Contributed by Mario Carneiro, 19-Apr-2015.) |
| Ref | Expression |
|---|---|
| 6p5lem.1 | ⊢ 𝐴 ∈ ℕ0 |
| 6p5lem.2 | ⊢ 𝐷 ∈ ℕ0 |
| 6p5lem.3 | ⊢ 𝐸 ∈ ℕ0 |
| 6p5lem.4 | ⊢ 𝐵 = (𝐷 + 1) |
| 6p5lem.5 | ⊢ 𝐶 = (𝐸 + 1) |
| 6p5lem.6 | ⊢ (𝐴 + 𝐷) = ;1𝐸 |
| Ref | Expression |
|---|---|
| 6p5lem | ⊢ (𝐴 + 𝐵) = ;1𝐶 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 6p5lem.4 | . . 3 ⊢ 𝐵 = (𝐷 + 1) | |
| 2 | 1 | oveq2i 5954 | . 2 ⊢ (𝐴 + 𝐵) = (𝐴 + (𝐷 + 1)) |
| 3 | 6p5lem.1 | . . . 4 ⊢ 𝐴 ∈ ℕ0 | |
| 4 | 3 | nn0cni 9306 | . . 3 ⊢ 𝐴 ∈ ℂ |
| 5 | 6p5lem.2 | . . . 4 ⊢ 𝐷 ∈ ℕ0 | |
| 6 | 5 | nn0cni 9306 | . . 3 ⊢ 𝐷 ∈ ℂ |
| 7 | ax-1cn 8017 | . . 3 ⊢ 1 ∈ ℂ | |
| 8 | 4, 6, 7 | addassi 8079 | . 2 ⊢ ((𝐴 + 𝐷) + 1) = (𝐴 + (𝐷 + 1)) |
| 9 | 1nn0 9310 | . . 3 ⊢ 1 ∈ ℕ0 | |
| 10 | 6p5lem.3 | . . 3 ⊢ 𝐸 ∈ ℕ0 | |
| 11 | 6p5lem.5 | . . . 4 ⊢ 𝐶 = (𝐸 + 1) | |
| 12 | 11 | eqcomi 2208 | . . 3 ⊢ (𝐸 + 1) = 𝐶 |
| 13 | 6p5lem.6 | . . 3 ⊢ (𝐴 + 𝐷) = ;1𝐸 | |
| 14 | 9, 10, 12, 13 | decsuc 9533 | . 2 ⊢ ((𝐴 + 𝐷) + 1) = ;1𝐶 |
| 15 | 2, 8, 14 | 3eqtr2i 2231 | 1 ⊢ (𝐴 + 𝐵) = ;1𝐶 |
| Colors of variables: wff set class |
| Syntax hints: = wceq 1372 ∈ wcel 2175 (class class class)co 5943 1c1 7925 + caddc 7927 ℕ0cn0 9294 ;cdc 9503 |
| 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 710 ax-5 1469 ax-7 1470 ax-gen 1471 ax-ie1 1515 ax-ie2 1516 ax-8 1526 ax-10 1527 ax-11 1528 ax-i12 1529 ax-bndl 1531 ax-4 1532 ax-17 1548 ax-i9 1552 ax-ial 1556 ax-i5r 1557 ax-14 2178 ax-ext 2186 ax-sep 4161 ax-pow 4217 ax-pr 4252 ax-setind 4584 ax-cnex 8015 ax-resscn 8016 ax-1cn 8017 ax-1re 8018 ax-icn 8019 ax-addcl 8020 ax-addrcl 8021 ax-mulcl 8022 ax-addcom 8024 ax-mulcom 8025 ax-addass 8026 ax-mulass 8027 ax-distr 8028 ax-i2m1 8029 ax-1rid 8031 ax-0id 8032 ax-rnegex 8033 ax-cnre 8035 |
| This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1375 df-fal 1378 df-nf 1483 df-sb 1785 df-eu 2056 df-mo 2057 df-clab 2191 df-cleq 2197 df-clel 2200 df-nfc 2336 df-ne 2376 df-ral 2488 df-rex 2489 df-reu 2490 df-rab 2492 df-v 2773 df-sbc 2998 df-dif 3167 df-un 3169 df-in 3171 df-ss 3178 df-pw 3617 df-sn 3638 df-pr 3639 df-op 3641 df-uni 3850 df-int 3885 df-br 4044 df-opab 4105 df-id 4339 df-xp 4680 df-rel 4681 df-cnv 4682 df-co 4683 df-dm 4684 df-iota 5231 df-fun 5272 df-fv 5278 df-riota 5898 df-ov 5946 df-oprab 5947 df-mpo 5948 df-sub 8244 df-inn 9036 df-2 9094 df-3 9095 df-4 9096 df-5 9097 df-6 9098 df-7 9099 df-8 9100 df-9 9101 df-n0 9295 df-dec 9504 |
| This theorem is referenced by: 6p5e11 9575 6p6e12 9576 7p4e11 9578 7p5e12 9579 7p6e13 9580 7p7e14 9581 8p3e11 9583 8p4e12 9584 8p5e13 9585 8p6e14 9586 8p7e15 9587 8p8e16 9588 9p2e11 9589 9p3e12 9590 9p4e13 9591 9p5e14 9592 9p6e15 9593 9p7e16 9594 9p8e17 9595 9p9e18 9596 |
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