| 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 35266 using ax-rep 5212 and ax-pow 5300. (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 3947 | . . . 4 ⊢ dom card ⊆ V | |
| 2 | 1 | a1i 11 | . . 3 ⊢ (Fin = V → dom card ⊆ V) |
| 3 | finnum 9861 | . . . . 5 ⊢ (𝑥 ∈ Fin → 𝑥 ∈ dom card) | |
| 4 | 3 | ssriv 3926 | . . . 4 ⊢ Fin ⊆ dom card |
| 5 | sseq1 3948 | . . . 4 ⊢ (Fin = V → (Fin ⊆ dom card ↔ V ⊆ dom card)) | |
| 6 | 4, 5 | mpbii 233 | . . 3 ⊢ (Fin = V → V ⊆ dom card) |
| 7 | 2, 6 | eqssd 3940 | . 2 ⊢ (Fin = V → dom card = V) |
| 8 | dfac10 10049 | . 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 3430 ⊆ wss 3890 dom cdm 5622 Fincfn 8884 cardccrd 9848 CHOICEwac 10026 |
| 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 5212 ax-sep 5231 ax-nul 5241 ax-pow 5300 ax-pr 5368 ax-un 7680 |
| 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 3063 df-rmo 3343 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-int 4891 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5517 df-eprel 5522 df-po 5530 df-so 5531 df-fr 5575 df-se 5576 df-we 5577 df-xp 5628 df-rel 5629 df-cnv 5630 df-co 5631 df-dm 5632 df-rn 5633 df-res 5634 df-ima 5635 df-pred 6257 df-ord 6318 df-on 6319 df-suc 6321 df-iota 6446 df-fun 6492 df-fn 6493 df-f 6494 df-f1 6495 df-fo 6496 df-f1o 6497 df-fv 6498 df-isom 6499 df-riota 7315 df-ov 7361 df-om 7809 df-2nd 7934 df-frecs 8222 df-wrecs 8253 df-recs 8302 df-er 8634 df-en 8885 df-fin 8888 df-card 9852 df-ac 10027 |
| This theorem is referenced by: (None) |
| Copyright terms: Public domain | W3C validator |