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| Mirrors > Home > ILE Home > Th. List > axpre-ltirr | GIF version | ||
| Description: Real number less-than is irreflexive. Axiom for real and complex numbers, derived from set theory. This construction-dependent theorem should not be referenced directly; instead, use ax-pre-ltirr 8119. (Contributed by Jim Kingdon, 12-Jan-2020.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| axpre-ltirr | ⊢ (𝐴 ∈ ℝ → ¬ 𝐴 <ℝ 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elreal 8023 | . . 3 ⊢ (𝐴 ∈ ℝ ↔ ∃𝑥 ∈ R 〈𝑥, 0R〉 = 𝐴) | |
| 2 | df-rex 2514 | . . 3 ⊢ (∃𝑥 ∈ R 〈𝑥, 0R〉 = 𝐴 ↔ ∃𝑥(𝑥 ∈ R ∧ 〈𝑥, 0R〉 = 𝐴)) | |
| 3 | 1, 2 | bitri 184 | . 2 ⊢ (𝐴 ∈ ℝ ↔ ∃𝑥(𝑥 ∈ R ∧ 〈𝑥, 0R〉 = 𝐴)) |
| 4 | id 19 | . . . 4 ⊢ (〈𝑥, 0R〉 = 𝐴 → 〈𝑥, 0R〉 = 𝐴) | |
| 5 | 4, 4 | breq12d 4096 | . . 3 ⊢ (〈𝑥, 0R〉 = 𝐴 → (〈𝑥, 0R〉 <ℝ 〈𝑥, 0R〉 ↔ 𝐴 <ℝ 𝐴)) |
| 6 | 5 | notbid 671 | . 2 ⊢ (〈𝑥, 0R〉 = 𝐴 → (¬ 〈𝑥, 0R〉 <ℝ 〈𝑥, 0R〉 ↔ ¬ 𝐴 <ℝ 𝐴)) |
| 7 | ltsosr 7959 | . . . . 5 ⊢ <R Or R | |
| 8 | ltrelsr 7933 | . . . . 5 ⊢ <R ⊆ (R × R) | |
| 9 | 7, 8 | soirri 5123 | . . . 4 ⊢ ¬ 𝑥 <R 𝑥 |
| 10 | ltresr 8034 | . . . 4 ⊢ (〈𝑥, 0R〉 <ℝ 〈𝑥, 0R〉 ↔ 𝑥 <R 𝑥) | |
| 11 | 9, 10 | mtbir 675 | . . 3 ⊢ ¬ 〈𝑥, 0R〉 <ℝ 〈𝑥, 0R〉 |
| 12 | 11 | a1i 9 | . 2 ⊢ (𝑥 ∈ R → ¬ 〈𝑥, 0R〉 <ℝ 〈𝑥, 0R〉) |
| 13 | 3, 6, 12 | gencl 2832 | 1 ⊢ (𝐴 ∈ ℝ → ¬ 𝐴 <ℝ 𝐴) |
| Colors of variables: wff set class |
| Syntax hints: ¬ wn 3 → wi 4 ∧ wa 104 = wceq 1395 ∃wex 1538 ∈ wcel 2200 ∃wrex 2509 〈cop 3669 class class class wbr 4083 Rcnr 7492 0Rc0r 7493 <R cltr 7498 ℝcr 8006 <ℝ cltrr 8011 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 617 ax-in2 618 ax-io 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-13 2202 ax-14 2203 ax-ext 2211 ax-coll 4199 ax-sep 4202 ax-nul 4210 ax-pow 4258 ax-pr 4293 ax-un 4524 ax-setind 4629 ax-iinf 4680 |
| This theorem depends on definitions: df-bi 117 df-dc 840 df-3or 1003 df-3an 1004 df-tru 1398 df-fal 1401 df-nf 1507 df-sb 1809 df-eu 2080 df-mo 2081 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ne 2401 df-ral 2513 df-rex 2514 df-reu 2515 df-rab 2517 df-v 2801 df-sbc 3029 df-csb 3125 df-dif 3199 df-un 3201 df-in 3203 df-ss 3210 df-nul 3492 df-pw 3651 df-sn 3672 df-pr 3673 df-op 3675 df-uni 3889 df-int 3924 df-iun 3967 df-br 4084 df-opab 4146 df-mpt 4147 df-tr 4183 df-eprel 4380 df-id 4384 df-po 4387 df-iso 4388 df-iord 4457 df-on 4459 df-suc 4462 df-iom 4683 df-xp 4725 df-rel 4726 df-cnv 4727 df-co 4728 df-dm 4729 df-rn 4730 df-res 4731 df-ima 4732 df-iota 5278 df-fun 5320 df-fn 5321 df-f 5322 df-f1 5323 df-fo 5324 df-f1o 5325 df-fv 5326 df-ov 6010 df-oprab 6011 df-mpo 6012 df-1st 6292 df-2nd 6293 df-recs 6457 df-irdg 6522 df-1o 6568 df-2o 6569 df-oadd 6572 df-omul 6573 df-er 6688 df-ec 6690 df-qs 6694 df-ni 7499 df-pli 7500 df-mi 7501 df-lti 7502 df-plpq 7539 df-mpq 7540 df-enq 7542 df-nqqs 7543 df-plqqs 7544 df-mqqs 7545 df-1nqqs 7546 df-rq 7547 df-ltnqqs 7548 df-enq0 7619 df-nq0 7620 df-0nq0 7621 df-plq0 7622 df-mq0 7623 df-inp 7661 df-i1p 7662 df-iplp 7663 df-iltp 7665 df-enr 7921 df-nr 7922 df-ltr 7925 df-0r 7926 df-r 8017 df-lt 8020 |
| This theorem is referenced by: (None) |
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