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| Mirrors > Home > MPE Home > Th. List > 0elright | Structured version Visualization version GIF version | ||
| Description: Zero is in the right set of any negative number. (Contributed by Scott Fenton, 13-Mar-2025.) |
| Ref | Expression |
|---|---|
| 0elright.1 | ⊢ (𝜑 → 𝐴 ∈ No ) |
| 0elright.2 | ⊢ (𝜑 → 𝐴 <s 0s ) |
| Ref | Expression |
|---|---|
| 0elright | ⊢ (𝜑 → 0s ∈ ( R ‘𝐴)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0elright.1 | . . 3 ⊢ (𝜑 → 𝐴 ∈ No ) | |
| 2 | 0elright.2 | . . . . 5 ⊢ (𝜑 → 𝐴 <s 0s ) | |
| 3 | ltsne 27994 | . . . . 5 ⊢ ((𝐴 ∈ No ∧ 𝐴 <s 0s ) → 0s ≠ 𝐴) | |
| 4 | 1, 2, 3 | syl2anc 596 | . . . 4 ⊢ (𝜑 → 0s ≠ 𝐴) |
| 5 | 4 | necomd 3015 | . . 3 ⊢ (𝜑 → 𝐴 ≠ 0s ) |
| 6 | 1, 5 | 0elold 28159 | . 2 ⊢ (𝜑 → 0s ∈ ( O ‘( bday ‘𝐴))) |
| 7 | elright 28101 | . 2 ⊢ ( 0s ∈ ( R ‘𝐴) ↔ ( 0s ∈ ( O ‘( bday ‘𝐴)) ∧ 𝐴 <s 0s )) | |
| 8 | 6, 2, 7 | sylanbrc 595 | 1 ⊢ (𝜑 → 0s ∈ ( R ‘𝐴)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2146 ≠ wne 2960 class class class wbr 5111 ‘cfv 6541 No csur 27860 <s clts 27861 bday cbday 27862 0s c0s 28054 O cold 28072 R cright 28075 |
| 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 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2737 ax-rep 5240 ax-sep 5259 ax-nul 5271 ax-pow 5338 ax-pr 5406 ax-un 7743 |
| 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 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-ral 3082 df-rex 3092 df-rmo 3371 df-reu 3372 df-rab 3419 df-v 3459 df-sbc 3747 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-pss 3926 df-nul 4287 df-if 4490 df-pw 4566 df-sn 4592 df-pr 4594 df-tp 4596 df-op 4598 df-uni 4875 df-int 4915 df-iun 4960 df-br 5112 df-opab 5176 df-mpt 5195 df-tr 5221 df-id 5558 df-eprel 5563 df-po 5571 df-so 5572 df-fr 5616 df-we 5618 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-pred 6307 df-ord 6368 df-on 6369 df-suc 6371 df-iota 6497 df-fun 6543 df-fn 6544 df-f 6545 df-f1 6546 df-fo 6547 df-f1o 6548 df-fv 6549 df-riota 7377 df-ov 7423 df-oprab 7424 df-mpo 7425 df-2nd 7994 df-frecs 8285 df-wrecs 8316 df-recs 8365 df-1o 8460 df-2o 8461 df-no 27863 df-lts 27864 df-bday 27865 df-slts 28007 df-cuts 28009 df-0s 28056 df-made 28076 df-old 28077 df-left 28079 df-right 28080 |
| This theorem is used by: (None) |
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