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| Mirrors > Home > MPE Home > Th. List > noprc | Structured version Visualization version GIF version | ||
| Description: The surreal numbers are a proper class. (Contributed by Scott Fenton, 16-Jun-2011.) |
| Ref | Expression |
|---|---|
| noprc | ⊢ ¬ No ∈ V |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | onprc 7781 | . 2 ⊢ ¬ On ∈ V | |
| 2 | bdayfo 28016 | . . 3 ⊢ bday : No –onto→On | |
| 3 | focdmex 7957 | . . 3 ⊢ ( No ∈ V → ( bday : No –onto→On → On ∈ V)) | |
| 4 | 2, 3 | mpi 21 | . 2 ⊢ ( No ∈ V → On ∈ V) |
| 5 | 1, 4 | mto 200 | 1 ⊢ ¬ No ∈ V |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ¬ wn 3 ∈ wcel 2145 Vcvv 3451 Oncon0 6355 –onto→wfo 6529 No csur 27979 bday cbday 27981 |
| 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 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2733 ax-rep 5232 ax-sep 5249 ax-nul 5260 ax-pow 5327 ax-pr 5391 ax-un 7740 |
| 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 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-ral 3078 df-rex 3088 df-reu 3367 df-rab 3414 df-v 3453 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-we 5606 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-ord 6358 df-on 6359 df-suc 6361 df-iota 6487 df-fun 6533 df-fn 6534 df-f 6535 df-f1 6536 df-fo 6537 df-f1o 6538 df-fv 6539 df-1o 8460 df-no 27982 df-bday 27984 |
| This theorem is used by: (None) |
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