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| Mirrors > Home > MPE Home > Th. List > tz9.12lem2 | Structured version Visualization version GIF version | ||
| Description: Lemma for tz9.12 9797. (Contributed by NM, 22-Sep-2003.) |
| Ref | Expression |
|---|---|
| tz9.12lem.1 | ⊢ 𝐴 ∈ V |
| tz9.12lem.2 | ⊢ 𝐹 = (𝑧 ∈ V ↦ ∩ {𝑣 ∈ On ∣ 𝑧 ∈ (𝑅1‘𝑣)}) |
| Ref | Expression |
|---|---|
| tz9.12lem2 | ⊢ suc ∪ (𝐹 “ 𝐴) ∈ On |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | tz9.12lem.1 | . . . 4 ⊢ 𝐴 ∈ V | |
| 2 | tz9.12lem.2 | . . . 4 ⊢ 𝐹 = (𝑧 ∈ V ↦ ∩ {𝑣 ∈ On ∣ 𝑧 ∈ (𝑅1‘𝑣)}) | |
| 3 | 1, 2 | tz9.12lem1 9794 | . . 3 ⊢ (𝐹 “ 𝐴) ⊆ On |
| 4 | 2 | funmpt2 6579 | . . . . 5 ⊢ Fun 𝐹 |
| 5 | 1 | funimaex 6627 | . . . . 5 ⊢ (Fun 𝐹 → (𝐹 “ 𝐴) ∈ V) |
| 6 | 4, 5 | ax-mp 5 | . . . 4 ⊢ (𝐹 “ 𝐴) ∈ V |
| 7 | 6 | ssonunii 7795 | . . 3 ⊢ ((𝐹 “ 𝐴) ⊆ On → ∪ (𝐹 “ 𝐴) ∈ On) |
| 8 | 3, 7 | ax-mp 5 | . 2 ⊢ ∪ (𝐹 “ 𝐴) ∈ On |
| 9 | 8 | onsuci 7850 | 1 ⊢ suc ∪ (𝐹 “ 𝐴) ∈ On |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1569 ∈ wcel 2144 {crab 3412 Vcvv 3450 ⊆ wss 3895 ∪ cuni 4866 ∩ cint 4906 ↦ cmpt 5185 “ cima 5653 Oncon0 6362 suc csuc 6364 Fun wfun 6532 ‘cfv 6538 𝑅1cr1 9766 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-rep 5231 ax-sep 5248 ax-pr 5390 ax-un 7751 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-ral 3077 df-rex 3087 df-rab 3413 df-v 3452 df-ss 3896 df-pss 4014 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4584 df-pr 4586 df-op 4590 df-uni 4867 df-int 4907 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5545 df-eprel 5550 df-po 5558 df-so 5559 df-fr 5603 df-we 5605 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-ord 6365 df-on 6366 df-suc 6368 df-fun 6540 |
| This theorem is used by: tz9.12lem3 9796 tz9.12 9797 |
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