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| Mirrors > Home > MPE Home > Th. List > 6p5lem | Structured version Visualization version GIF version | ||
| Description: Lemma for 6p5e11 12807 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 7430 | . 2 ⊢ (𝐴 + 𝐵) = (𝐴 + (𝐷 + 1)) |
| 3 | 6p5lem.1 | . . . 4 ⊢ 𝐴 ∈ ℕ0 | |
| 4 | 3 | nn0cni 12533 | . . 3 ⊢ 𝐴 ∈ ℂ |
| 5 | 6p5lem.2 | . . . 4 ⊢ 𝐷 ∈ ℕ0 | |
| 6 | 5 | nn0cni 12533 | . . 3 ⊢ 𝐷 ∈ ℂ |
| 7 | ax-1cn 11175 | . . 3 ⊢ 1 ∈ ℂ | |
| 8 | 4, 6, 7 | addassi 11236 | . 2 ⊢ ((𝐴 + 𝐷) + 1) = (𝐴 + (𝐷 + 1)) |
| 9 | 1nn0 12537 | . . 3 ⊢ 1 ∈ ℕ0 | |
| 10 | 6p5lem.3 | . . 3 ⊢ 𝐸 ∈ ℕ0 | |
| 11 | 6p5lem.5 | . . . 4 ⊢ 𝐶 = (𝐸 + 1) | |
| 12 | 11 | eqcomi 2774 | . . 3 ⊢ (𝐸 + 1) = 𝐶 |
| 13 | 6p5lem.6 | . . 3 ⊢ (𝐴 + 𝐷) = ;1𝐸 | |
| 14 | 9, 10, 12, 13 | decsuc 12765 | . 2 ⊢ ((𝐴 + 𝐷) + 1) = ;1𝐶 |
| 15 | 2, 8, 14 | 3eqtr2i 2794 | 1 ⊢ (𝐴 + 𝐵) = ;1𝐶 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 ∈ wcel 2146 (class class class)co 7419 1c1 11118 + caddc 11120 ℕ0cn0 12521 ;cdc 12729 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2737 ax-sep 5259 ax-nul 5271 ax-pow 5338 ax-pr 5406 ax-un 7742 ax-resscn 11174 ax-1cn 11175 ax-icn 11176 ax-addcl 11177 ax-addrcl 11178 ax-mulcl 11179 ax-mulrcl 11180 ax-mulcom 11181 ax-addass 11182 ax-mulass 11183 ax-distr 11184 ax-i2m1 11185 ax-1ne0 11186 ax-1rid 11187 ax-rnegex 11188 ax-rrecex 11189 ax-cnre 11190 ax-pre-lttri 11191 ax-pre-lttrn 11192 ax-pre-ltadd 11193 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-nel 3067 df-ral 3082 df-rex 3092 df-reu 3372 df-rab 3419 df-v 3459 df-sbc 3747 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-pss 3926 df-nul 4287 df-if 4490 df-pw 4566 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4875 df-iun 4960 df-br 5112 df-opab 5176 df-mpt 5195 df-tr 5221 df-id 5558 df-eprel 5563 df-po 5571 df-so 5572 df-fr 5616 df-we 5618 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-pred 6306 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6496 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-ov 7422 df-om 7869 df-2nd 7993 df-frecs 8284 df-wrecs 8315 df-recs 8364 df-rdg 8403 df-er 8700 df-en 8950 df-dom 8951 df-sdom 8952 df-pnf 11262 df-mnf 11263 df-ltxr 11265 df-nn 12251 df-2 12320 df-3 12321 df-4 12322 df-5 12323 df-6 12324 df-7 12325 df-8 12326 df-9 12327 df-n0 12522 df-dec 12730 |
| This theorem is used by: 6p5e11 12807 6p6e12 12808 7p4e11 12810 7p5e12 12811 7p6e13 12812 7p7e14 12813 8p3e11 12815 8p4e12 12816 8p5e13 12817 8p6e14 12818 8p7e15 12819 8p8e16 12820 9p2e11 12821 9p3e12 12822 9p4e13 12823 9p5e14 12824 9p6e15 12825 9p7e16 12826 9p8e17 12827 9p9e18 12828 |
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