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| Mirrors > Home > MPE Home > Th. List > negsf1o | Structured version Visualization version GIF version | ||
| Description: Surreal negation is a bijection. (Contributed by Scott Fenton, 3-Feb-2025.) |
| Ref | Expression |
|---|---|
| negsf1o | ⊢ -s:No⟶1-1ontoNo |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | negsf 28471 | . . 3 ⊢ -s:No⟶No | |
| 2 | negs11 28468 | . . . . 5 ⊢ ((𝑥 ∈ No ∧ 𝑦 ∈ No) → (( -s‘𝑥) = ( -s‘𝑦) ↔ 𝑥 = 𝑦)) | |
| 3 | 2 | biimpd 232 | . . . 4 ⊢ ((𝑥 ∈ No ∧ 𝑦 ∈ No) → (( -s‘𝑥) = ( -s‘𝑦) → 𝑥 = 𝑦)) |
| 4 | 3 | rgen2 3206 | . . 3 ⊢ ∀𝑥 ∈ No ∀𝑦 ∈ No (( -s‘𝑥) = ( -s‘𝑦) → 𝑥 = 𝑦) |
| 5 | dff13 7284 | . . 3 ⊢ ( -s:No⟶1-1No ↔ ( -s:No⟶No ∧ ∀𝑥 ∈ No ∀𝑦 ∈ No (( -s‘𝑥) = ( -s‘𝑦) → 𝑥 = 𝑦))) | |
| 6 | 1, 4, 5 | mpbir2an 724 | . 2 ⊢ -s:No⟶1-1No |
| 7 | negsfo 28472 | . 2 ⊢ -s:No⟶ontoNo | |
| 8 | df-f1o 6568 | . 2 ⊢ ( -s:No⟶1-1ontoNo ↔ ( -s:No⟶1-1No ∧ -s:No⟶ontoNo)) | |
| 9 | 6, 7, 8 | mpbir2an 724 | 1 ⊢ -s:No⟶1-1ontoNo |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2147 ∀wral 3080 ⟶wf 6557 ⟶1-1wf1 6558 ⟶ontowfo 6559 ⟶1-1ontowf1o 6560 ‘cfv 6561 Nocsur 28030 -scnegs 28438 |
| 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 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-rep 5236 ax-sep 5253 ax-nul 5264 ax-pow 5332 ax-pr 5396 ax-un 7778 |
| 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 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-ral 3081 df-rex 3091 df-rmo 3369 df-reu 3370 df-rab 3417 df-v 3456 df-sbc 3743 df-csb 3852 df-ss 3901 df-pss 4017 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-tp 4593 df-op 4839 df-ot 4862 df-uni 4871 df-int 4911 df-iun 4956 df-br 5107 df-opab 5172 df-mpt 5191 df-tr 5217 df-id 5551 df-eprel 5556 df-po 5564 df-so 5565 df-fr 5609 df-se 5610 df-we 5611 df-xp 5662 df-rel 5663 df-cnv 5664 df-co 5665 df-dm 5666 df-rn 5667 df-res 5668 df-ima 5669 df-pred 6325 df-ord 6386 df-on 6387 df-suc 6389 df-iota 6515 df-fun 6563 df-fn 6564 df-f 6565 df-f1 6566 df-fo 6567 df-f1o 6568 df-fv 6569 df-riota 7403 df-ov 7449 df-oprab 7450 df-mpo 7451 df-1st 8028 df-2nd 8029 df-frecs 8330 df-wrecs 8361 df-recs 8410 df-1o 8507 df-2o 8508 df-nadd 8706 df-no 28033 df-lts 28034 df-bday 28035 df-les 28135 df-slts 28177 df-cuts 28179 df-0s 28226 df-made 28246 df-old 28247 df-left 28249 df-right 28250 df-norec 28357 df-norec2 28368 df-adds 28379 df-negs 28440 |
| This theorem is used by: (None) |
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