Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
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 7865. (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 7769 | . . 3 ⊢ (𝐴 ∈ ℝ ↔ ∃𝑥 ∈ R 〈𝑥, 0R〉 = 𝐴) | |
2 | df-rex 2450 | . . 3 ⊢ (∃𝑥 ∈ R 〈𝑥, 0R〉 = 𝐴 ↔ ∃𝑥(𝑥 ∈ R ∧ 〈𝑥, 0R〉 = 𝐴)) | |
3 | 1, 2 | bitri 183 | . 2 ⊢ (𝐴 ∈ ℝ ↔ ∃𝑥(𝑥 ∈ R ∧ 〈𝑥, 0R〉 = 𝐴)) |
4 | id 19 | . . . 4 ⊢ (〈𝑥, 0R〉 = 𝐴 → 〈𝑥, 0R〉 = 𝐴) | |
5 | 4, 4 | breq12d 3995 | . . 3 ⊢ (〈𝑥, 0R〉 = 𝐴 → (〈𝑥, 0R〉 <ℝ 〈𝑥, 0R〉 ↔ 𝐴 <ℝ 𝐴)) |
6 | 5 | notbid 657 | . 2 ⊢ (〈𝑥, 0R〉 = 𝐴 → (¬ 〈𝑥, 0R〉 <ℝ 〈𝑥, 0R〉 ↔ ¬ 𝐴 <ℝ 𝐴)) |
7 | ltsosr 7705 | . . . . 5 ⊢ <R Or R | |
8 | ltrelsr 7679 | . . . . 5 ⊢ <R ⊆ (R × R) | |
9 | 7, 8 | soirri 4998 | . . . 4 ⊢ ¬ 𝑥 <R 𝑥 |
10 | ltresr 7780 | . . . 4 ⊢ (〈𝑥, 0R〉 <ℝ 〈𝑥, 0R〉 ↔ 𝑥 <R 𝑥) | |
11 | 9, 10 | mtbir 661 | . . 3 ⊢ ¬ 〈𝑥, 0R〉 <ℝ 〈𝑥, 0R〉 |
12 | 11 | a1i 9 | . 2 ⊢ (𝑥 ∈ R → ¬ 〈𝑥, 0R〉 <ℝ 〈𝑥, 0R〉) |
13 | 3, 6, 12 | gencl 2758 | 1 ⊢ (𝐴 ∈ ℝ → ¬ 𝐴 <ℝ 𝐴) |
Colors of variables: wff set class |
Syntax hints: ¬ wn 3 → wi 4 ∧ wa 103 = wceq 1343 ∃wex 1480 ∈ wcel 2136 ∃wrex 2445 〈cop 3579 class class class wbr 3982 Rcnr 7238 0Rc0r 7239 <R cltr 7244 ℝcr 7752 <ℝ cltrr 7757 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 604 ax-in2 605 ax-io 699 ax-5 1435 ax-7 1436 ax-gen 1437 ax-ie1 1481 ax-ie2 1482 ax-8 1492 ax-10 1493 ax-11 1494 ax-i12 1495 ax-bndl 1497 ax-4 1498 ax-17 1514 ax-i9 1518 ax-ial 1522 ax-i5r 1523 ax-13 2138 ax-14 2139 ax-ext 2147 ax-coll 4097 ax-sep 4100 ax-nul 4108 ax-pow 4153 ax-pr 4187 ax-un 4411 ax-setind 4514 ax-iinf 4565 |
This theorem depends on definitions: df-bi 116 df-dc 825 df-3or 969 df-3an 970 df-tru 1346 df-fal 1349 df-nf 1449 df-sb 1751 df-eu 2017 df-mo 2018 df-clab 2152 df-cleq 2158 df-clel 2161 df-nfc 2297 df-ne 2337 df-ral 2449 df-rex 2450 df-reu 2451 df-rab 2453 df-v 2728 df-sbc 2952 df-csb 3046 df-dif 3118 df-un 3120 df-in 3122 df-ss 3129 df-nul 3410 df-pw 3561 df-sn 3582 df-pr 3583 df-op 3585 df-uni 3790 df-int 3825 df-iun 3868 df-br 3983 df-opab 4044 df-mpt 4045 df-tr 4081 df-eprel 4267 df-id 4271 df-po 4274 df-iso 4275 df-iord 4344 df-on 4346 df-suc 4349 df-iom 4568 df-xp 4610 df-rel 4611 df-cnv 4612 df-co 4613 df-dm 4614 df-rn 4615 df-res 4616 df-ima 4617 df-iota 5153 df-fun 5190 df-fn 5191 df-f 5192 df-f1 5193 df-fo 5194 df-f1o 5195 df-fv 5196 df-ov 5845 df-oprab 5846 df-mpo 5847 df-1st 6108 df-2nd 6109 df-recs 6273 df-irdg 6338 df-1o 6384 df-2o 6385 df-oadd 6388 df-omul 6389 df-er 6501 df-ec 6503 df-qs 6507 df-ni 7245 df-pli 7246 df-mi 7247 df-lti 7248 df-plpq 7285 df-mpq 7286 df-enq 7288 df-nqqs 7289 df-plqqs 7290 df-mqqs 7291 df-1nqqs 7292 df-rq 7293 df-ltnqqs 7294 df-enq0 7365 df-nq0 7366 df-0nq0 7367 df-plq0 7368 df-mq0 7369 df-inp 7407 df-i1p 7408 df-iplp 7409 df-iltp 7411 df-enr 7667 df-nr 7668 df-ltr 7671 df-0r 7672 df-r 7763 df-lt 7766 |
This theorem is referenced by: (None) |
Copyright terms: Public domain | W3C validator |