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| Mirrors > Home > ILE Home > Th. List > suplocexprlemss | GIF version | ||
| Description: Lemma for suplocexpr 7988. 𝐴 is a set of positive reals. (Contributed by Jim Kingdon, 7-Jan-2024.) |
| Ref | Expression |
|---|---|
| suplocexpr.m | ⊢ (𝜑 → ∃𝑥 𝑥 ∈ 𝐴) |
| suplocexpr.ub | ⊢ (𝜑 → ∃𝑥 ∈ P ∀𝑦 ∈ 𝐴 𝑦<P 𝑥) |
| suplocexpr.loc | ⊢ (𝜑 → ∀𝑥 ∈ P ∀𝑦 ∈ P (𝑥<P 𝑦 → (∃𝑧 ∈ 𝐴 𝑥<P 𝑧 ∨ ∀𝑧 ∈ 𝐴 𝑧<P 𝑦))) |
| Ref | Expression |
|---|---|
| suplocexprlemss | ⊢ (𝜑 → 𝐴 ⊆ P) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | suplocexpr.ub | . . 3 ⊢ (𝜑 → ∃𝑥 ∈ P ∀𝑦 ∈ 𝐴 𝑦<P 𝑥) | |
| 2 | rsp 2580 | . . . . . 6 ⊢ (∀𝑦 ∈ 𝐴 𝑦<P 𝑥 → (𝑦 ∈ 𝐴 → 𝑦<P 𝑥)) | |
| 3 | ltrelpr 7768 | . . . . . . . 8 ⊢ <P ⊆ (P × P) | |
| 4 | 3 | brel 4784 | . . . . . . 7 ⊢ (𝑦<P 𝑥 → (𝑦 ∈ P ∧ 𝑥 ∈ P)) |
| 5 | 4 | simpld 112 | . . . . . 6 ⊢ (𝑦<P 𝑥 → 𝑦 ∈ P) |
| 6 | 2, 5 | syl6 33 | . . . . 5 ⊢ (∀𝑦 ∈ 𝐴 𝑦<P 𝑥 → (𝑦 ∈ 𝐴 → 𝑦 ∈ P)) |
| 7 | 6 | a1i 9 | . . . 4 ⊢ (𝜑 → (∀𝑦 ∈ 𝐴 𝑦<P 𝑥 → (𝑦 ∈ 𝐴 → 𝑦 ∈ P))) |
| 8 | 7 | rexlimdvw 2655 | . . 3 ⊢ (𝜑 → (∃𝑥 ∈ P ∀𝑦 ∈ 𝐴 𝑦<P 𝑥 → (𝑦 ∈ 𝐴 → 𝑦 ∈ P))) |
| 9 | 1, 8 | mpd 13 | . 2 ⊢ (𝜑 → (𝑦 ∈ 𝐴 → 𝑦 ∈ P)) |
| 10 | 9 | ssrdv 3234 | 1 ⊢ (𝜑 → 𝐴 ⊆ P) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∨ wo 716 ∃wex 1541 ∈ wcel 2202 ∀wral 2511 ∃wrex 2512 ⊆ wss 3201 class class class wbr 4093 Pcnp 7554 <P cltp 7558 |
| 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-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-14 2205 ax-ext 2213 ax-sep 4212 ax-pow 4270 ax-pr 4305 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-ral 2516 df-rex 2517 df-v 2805 df-un 3205 df-in 3207 df-ss 3214 df-pw 3658 df-sn 3679 df-pr 3680 df-op 3682 df-br 4094 df-opab 4156 df-xp 4737 df-iltp 7733 |
| This theorem is referenced by: suplocexprlemml 7979 suplocexprlemrl 7980 suplocexprlemmu 7981 suplocexprlemru 7982 suplocexprlemdisj 7983 suplocexprlemloc 7984 suplocexprlemex 7985 suplocexprlemub 7986 suplocexprlemlub 7987 |
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