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Mirrors > Home > MPE Home > Th. List > Mathboxes > 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 7317 | . 2 ⊢ ¬ On ∈ V | |
2 | bdayfo 32703 | . . 3 ⊢ bday : No –onto→On | |
3 | fornex 7471 | . . 3 ⊢ ( No ∈ V → ( bday : No –onto→On → On ∈ V)) | |
4 | 2, 3 | mpi 20 | . 2 ⊢ ( No ∈ V → On ∈ V) |
5 | 1, 4 | mto 189 | 1 ⊢ ¬ No ∈ V |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 ∈ wcel 2050 Vcvv 3415 Oncon0 6031 –onto→wfo 6188 No csur 32668 bday cbday 32670 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1758 ax-4 1772 ax-5 1869 ax-6 1928 ax-7 1965 ax-8 2052 ax-9 2059 ax-10 2079 ax-11 2093 ax-12 2106 ax-13 2301 ax-ext 2750 ax-rep 5050 ax-sep 5061 ax-nul 5068 ax-pr 5187 ax-un 7281 |
This theorem depends on definitions: df-bi 199 df-an 388 df-or 834 df-3or 1069 df-3an 1070 df-tru 1510 df-ex 1743 df-nf 1747 df-sb 2016 df-mo 2547 df-eu 2583 df-clab 2759 df-cleq 2771 df-clel 2846 df-nfc 2918 df-ne 2968 df-ral 3093 df-rex 3094 df-reu 3095 df-rab 3097 df-v 3417 df-sbc 3684 df-csb 3789 df-dif 3834 df-un 3836 df-in 3838 df-ss 3845 df-pss 3847 df-nul 4181 df-if 4352 df-pw 4425 df-sn 4443 df-pr 4445 df-tp 4447 df-op 4449 df-uni 4714 df-iun 4795 df-br 4931 df-opab 4993 df-mpt 5010 df-tr 5032 df-id 5313 df-eprel 5318 df-po 5327 df-so 5328 df-fr 5367 df-we 5369 df-xp 5414 df-rel 5415 df-cnv 5416 df-co 5417 df-dm 5418 df-rn 5419 df-res 5420 df-ima 5421 df-ord 6034 df-on 6035 df-suc 6037 df-iota 6154 df-fun 6192 df-fn 6193 df-f 6194 df-f1 6195 df-fo 6196 df-f1o 6197 df-fv 6198 df-1o 7907 df-no 32671 df-bday 32673 |
This theorem is referenced by: (None) |
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