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Mirrors > Home > MPE Home > Th. List > Mathboxes > norn | Structured version Visualization version GIF version |
Description: The range of a surreal is a subset of the surreal signs. (Contributed by Scott Fenton, 16-Jun-2011.) |
Ref | Expression |
---|---|
norn | ⊢ (𝐴 ∈ No → ran 𝐴 ⊆ {1o, 2o}) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elno 33586 | . 2 ⊢ (𝐴 ∈ No ↔ ∃𝑥 ∈ On 𝐴:𝑥⟶{1o, 2o}) | |
2 | frn 6552 | . . 3 ⊢ (𝐴:𝑥⟶{1o, 2o} → ran 𝐴 ⊆ {1o, 2o}) | |
3 | 2 | rexlimivw 3201 | . 2 ⊢ (∃𝑥 ∈ On 𝐴:𝑥⟶{1o, 2o} → ran 𝐴 ⊆ {1o, 2o}) |
4 | 1, 3 | sylbi 220 | 1 ⊢ (𝐴 ∈ No → ran 𝐴 ⊆ {1o, 2o}) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∈ wcel 2110 ∃wrex 3062 ⊆ wss 3866 {cpr 4543 ran crn 5552 Oncon0 6213 ⟶wf 6376 1oc1o 8195 2oc2o 8196 No csur 33580 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1976 ax-7 2016 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2158 ax-12 2175 ax-ext 2708 ax-rep 5179 ax-sep 5192 ax-nul 5199 ax-pr 5322 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 848 df-3an 1091 df-tru 1546 df-fal 1556 df-ex 1788 df-nf 1792 df-sb 2071 df-mo 2539 df-eu 2568 df-clab 2715 df-cleq 2729 df-clel 2816 df-nfc 2886 df-ne 2941 df-ral 3066 df-rex 3067 df-reu 3068 df-rab 3070 df-v 3410 df-sbc 3695 df-csb 3812 df-dif 3869 df-un 3871 df-in 3873 df-ss 3883 df-nul 4238 df-if 4440 df-sn 4542 df-pr 4544 df-op 4548 df-uni 4820 df-iun 4906 df-br 5054 df-opab 5116 df-mpt 5136 df-id 5455 df-xp 5557 df-rel 5558 df-cnv 5559 df-co 5560 df-dm 5561 df-rn 5562 df-res 5563 df-ima 5564 df-iota 6338 df-fun 6382 df-fn 6383 df-f 6384 df-f1 6385 df-fo 6386 df-f1o 6387 df-fv 6388 df-no 33583 |
This theorem is referenced by: elno2 33594 nofv 33597 sltres 33602 noextend 33606 noextendseq 33607 nosepssdm 33626 nodenselem8 33631 nolt02olem 33634 nosupno 33643 noinfno 33658 |
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