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Mirrors > Home > ILE Home > Th. List > 6p5lem | GIF version |
Description: Lemma for 6p5e11 9491 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 5911 | . 2 ⊢ (𝐴 + 𝐵) = (𝐴 + (𝐷 + 1)) |
3 | 6p5lem.1 | . . . 4 ⊢ 𝐴 ∈ ℕ0 | |
4 | 3 | nn0cni 9223 | . . 3 ⊢ 𝐴 ∈ ℂ |
5 | 6p5lem.2 | . . . 4 ⊢ 𝐷 ∈ ℕ0 | |
6 | 5 | nn0cni 9223 | . . 3 ⊢ 𝐷 ∈ ℂ |
7 | ax-1cn 7939 | . . 3 ⊢ 1 ∈ ℂ | |
8 | 4, 6, 7 | addassi 8000 | . 2 ⊢ ((𝐴 + 𝐷) + 1) = (𝐴 + (𝐷 + 1)) |
9 | 1nn0 9227 | . . 3 ⊢ 1 ∈ ℕ0 | |
10 | 6p5lem.3 | . . 3 ⊢ 𝐸 ∈ ℕ0 | |
11 | 6p5lem.5 | . . . 4 ⊢ 𝐶 = (𝐸 + 1) | |
12 | 11 | eqcomi 2193 | . . 3 ⊢ (𝐸 + 1) = 𝐶 |
13 | 6p5lem.6 | . . 3 ⊢ (𝐴 + 𝐷) = ;1𝐸 | |
14 | 9, 10, 12, 13 | decsuc 9449 | . 2 ⊢ ((𝐴 + 𝐷) + 1) = ;1𝐶 |
15 | 2, 8, 14 | 3eqtr2i 2216 | 1 ⊢ (𝐴 + 𝐵) = ;1𝐶 |
Colors of variables: wff set class |
Syntax hints: = wceq 1364 ∈ wcel 2160 (class class class)co 5900 1c1 7847 + caddc 7849 ℕ0cn0 9211 ;cdc 9419 |
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 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-14 2163 ax-ext 2171 ax-sep 4139 ax-pow 4195 ax-pr 4230 ax-setind 4557 ax-cnex 7937 ax-resscn 7938 ax-1cn 7939 ax-1re 7940 ax-icn 7941 ax-addcl 7942 ax-addrcl 7943 ax-mulcl 7944 ax-addcom 7946 ax-mulcom 7947 ax-addass 7948 ax-mulass 7949 ax-distr 7950 ax-i2m1 7951 ax-1rid 7953 ax-0id 7954 ax-rnegex 7955 ax-cnre 7957 |
This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-fal 1370 df-nf 1472 df-sb 1774 df-eu 2041 df-mo 2042 df-clab 2176 df-cleq 2182 df-clel 2185 df-nfc 2321 df-ne 2361 df-ral 2473 df-rex 2474 df-reu 2475 df-rab 2477 df-v 2754 df-sbc 2978 df-dif 3146 df-un 3148 df-in 3150 df-ss 3157 df-pw 3595 df-sn 3616 df-pr 3617 df-op 3619 df-uni 3828 df-int 3863 df-br 4022 df-opab 4083 df-id 4314 df-xp 4653 df-rel 4654 df-cnv 4655 df-co 4656 df-dm 4657 df-iota 5199 df-fun 5240 df-fv 5246 df-riota 5855 df-ov 5903 df-oprab 5904 df-mpo 5905 df-sub 8165 df-inn 8955 df-2 9013 df-3 9014 df-4 9015 df-5 9016 df-6 9017 df-7 9018 df-8 9019 df-9 9020 df-n0 9212 df-dec 9420 |
This theorem is referenced by: 6p5e11 9491 6p6e12 9492 7p4e11 9494 7p5e12 9495 7p6e13 9496 7p7e14 9497 8p3e11 9499 8p4e12 9500 8p5e13 9501 8p6e14 9502 8p7e15 9503 8p8e16 9504 9p2e11 9505 9p3e12 9506 9p4e13 9507 9p5e14 9508 9p6e15 9509 9p7e16 9510 9p8e17 9511 9p9e18 9512 |
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