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Mirrors > Home > ILE Home > Th. List > caucvgsrlemasr | GIF version |
Description: Lemma for caucvgsr 6886. The lower bound is a signed real. (Contributed by Jim Kingdon, 4-Jul-2021.) |
Ref | Expression |
---|---|
caucvgsrlemasr.bnd | ⊢ (𝜑 → ∀𝑚 ∈ N 𝐴 <R (𝐹‘𝑚)) |
Ref | Expression |
---|---|
caucvgsrlemasr | ⊢ (𝜑 → 𝐴 ∈ R) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | caucvgsrlemasr.bnd | . . 3 ⊢ (𝜑 → ∀𝑚 ∈ N 𝐴 <R (𝐹‘𝑚)) | |
2 | ltrelsr 6823 | . . . . . 6 ⊢ <R ⊆ (R × R) | |
3 | 2 | brel 4392 | . . . . 5 ⊢ (𝐴 <R (𝐹‘𝑚) → (𝐴 ∈ R ∧ (𝐹‘𝑚) ∈ R)) |
4 | 3 | simpld 105 | . . . 4 ⊢ (𝐴 <R (𝐹‘𝑚) → 𝐴 ∈ R) |
5 | 4 | ralimi 2384 | . . 3 ⊢ (∀𝑚 ∈ N 𝐴 <R (𝐹‘𝑚) → ∀𝑚 ∈ N 𝐴 ∈ R) |
6 | 1, 5 | syl 14 | . 2 ⊢ (𝜑 → ∀𝑚 ∈ N 𝐴 ∈ R) |
7 | 1pi 6413 | . . 3 ⊢ 1𝑜 ∈ N | |
8 | elex2 2570 | . . 3 ⊢ (1𝑜 ∈ N → ∃𝑥 𝑥 ∈ N) | |
9 | r19.3rmv 3312 | . . 3 ⊢ (∃𝑥 𝑥 ∈ N → (𝐴 ∈ R ↔ ∀𝑚 ∈ N 𝐴 ∈ R)) | |
10 | 7, 8, 9 | mp2b 8 | . 2 ⊢ (𝐴 ∈ R ↔ ∀𝑚 ∈ N 𝐴 ∈ R) |
11 | 6, 10 | sylibr 137 | 1 ⊢ (𝜑 → 𝐴 ∈ R) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ↔ wb 98 ∃wex 1381 ∈ wcel 1393 ∀wral 2306 class class class wbr 3764 ‘cfv 4902 1𝑜c1o 5994 Ncnpi 6370 Rcnr 6395 <R cltr 6401 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 99 ax-ia2 100 ax-ia3 101 ax-in1 544 ax-in2 545 ax-io 630 ax-5 1336 ax-7 1337 ax-gen 1338 ax-ie1 1382 ax-ie2 1383 ax-8 1395 ax-10 1396 ax-11 1397 ax-i12 1398 ax-bndl 1399 ax-4 1400 ax-13 1404 ax-14 1405 ax-17 1419 ax-i9 1423 ax-ial 1427 ax-i5r 1428 ax-ext 2022 ax-sep 3875 ax-nul 3883 ax-pow 3927 ax-pr 3944 ax-un 4170 |
This theorem depends on definitions: df-bi 110 df-3an 887 df-tru 1246 df-nf 1350 df-sb 1646 df-clab 2027 df-cleq 2033 df-clel 2036 df-nfc 2167 df-ne 2206 df-ral 2311 df-rex 2312 df-v 2559 df-dif 2920 df-un 2922 df-in 2924 df-ss 2931 df-nul 3225 df-pw 3361 df-sn 3381 df-pr 3382 df-op 3384 df-uni 3581 df-int 3616 df-br 3765 df-opab 3819 df-suc 4108 df-iom 4314 df-xp 4351 df-1o 6001 df-ni 6402 df-ltr 6815 |
This theorem is referenced by: caucvgsrlemoffval 6880 caucvgsrlemofff 6881 caucvgsrlemoffcau 6882 caucvgsrlemoffgt1 6883 caucvgsrlemoffres 6884 |
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