| Mathbox for BTernaryTau |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > Mathboxes > fineqvacALT | Structured version Visualization version GIF version | ||
| Description: Shorter proof of fineqvac 35253 using ax-rep 5225 and ax-pow 5311. (Contributed by BTernaryTau, 21-Sep-2024.) (Proof modification is discouraged.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| fineqvacALT | ⊢ (Fin = V → CHOICE) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ssv 3959 | . . . 4 ⊢ dom card ⊆ V | |
| 2 | 1 | a1i 11 | . . 3 ⊢ (Fin = V → dom card ⊆ V) |
| 3 | finnum 9864 | . . . . 5 ⊢ (𝑥 ∈ Fin → 𝑥 ∈ dom card) | |
| 4 | 3 | ssriv 3938 | . . . 4 ⊢ Fin ⊆ dom card |
| 5 | sseq1 3960 | . . . 4 ⊢ (Fin = V → (Fin ⊆ dom card ↔ V ⊆ dom card)) | |
| 6 | 4, 5 | mpbii 233 | . . 3 ⊢ (Fin = V → V ⊆ dom card) |
| 7 | 2, 6 | eqssd 3952 | . 2 ⊢ (Fin = V → dom card = V) |
| 8 | dfac10 10052 | . 2 ⊢ (CHOICE ↔ dom card = V) | |
| 9 | 7, 8 | sylibr 234 | 1 ⊢ (Fin = V → CHOICE) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1542 Vcvv 3441 ⊆ wss 3902 dom cdm 5625 Fincfn 8887 cardccrd 9851 CHOICEwac 10029 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-rep 5225 ax-sep 5242 ax-nul 5252 ax-pow 5311 ax-pr 5378 ax-un 7682 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-ral 3053 df-rex 3062 df-rmo 3351 df-reu 3352 df-rab 3401 df-v 3443 df-sbc 3742 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4287 df-if 4481 df-pw 4557 df-sn 4582 df-pr 4584 df-op 4588 df-uni 4865 df-int 4904 df-iun 4949 df-br 5100 df-opab 5162 df-mpt 5181 df-tr 5207 df-id 5520 df-eprel 5525 df-po 5533 df-so 5534 df-fr 5578 df-se 5579 df-we 5580 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-res 5637 df-ima 5638 df-pred 6260 df-ord 6321 df-on 6322 df-suc 6324 df-iota 6449 df-fun 6495 df-fn 6496 df-f 6497 df-f1 6498 df-fo 6499 df-f1o 6500 df-fv 6501 df-isom 6502 df-riota 7317 df-ov 7363 df-om 7811 df-2nd 7936 df-frecs 8225 df-wrecs 8256 df-recs 8305 df-er 8637 df-en 8888 df-fin 8891 df-card 9855 df-ac 10030 |
| This theorem is referenced by: (None) |
| Copyright terms: Public domain | W3C validator |