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| Mirrors > Home > MPE Home > Th. List > xle2add | Structured version Visualization version GIF version | ||
| Description: Extended real version of le2add 11805. (Contributed by Mario Carneiro, 23-Aug-2015.) |
| Ref | Expression |
|---|---|
| xle2add | ⊢ (((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) ∧ (𝐶 ∈ ℝ* ∧ 𝐷 ∈ ℝ*)) → ((𝐴 ≤ 𝐶 ∧ 𝐵 ≤ 𝐷) → (𝐴 +e 𝐵) ≤ (𝐶 +e 𝐷))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | simpll 779 | . . 3 ⊢ (((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) ∧ (𝐶 ∈ ℝ* ∧ 𝐷 ∈ ℝ*)) → 𝐴 ∈ ℝ*) | |
| 2 | simprl 783 | . . 3 ⊢ (((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) ∧ (𝐶 ∈ ℝ* ∧ 𝐷 ∈ ℝ*)) → 𝐶 ∈ ℝ*) | |
| 3 | simplr 781 | . . 3 ⊢ (((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) ∧ (𝐶 ∈ ℝ* ∧ 𝐷 ∈ ℝ*)) → 𝐵 ∈ ℝ*) | |
| 4 | xleadd1a 13390 | . . . 4 ⊢ (((𝐴 ∈ ℝ* ∧ 𝐶 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) ∧ 𝐴 ≤ 𝐶) → (𝐴 +e 𝐵) ≤ (𝐶 +e 𝐵)) | |
| 5 | 4 | ex 418 | . . 3 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐶 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) → (𝐴 ≤ 𝐶 → (𝐴 +e 𝐵) ≤ (𝐶 +e 𝐵))) |
| 6 | 1, 2, 3, 5 | syl3anc 1398 | . 2 ⊢ (((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) ∧ (𝐶 ∈ ℝ* ∧ 𝐷 ∈ ℝ*)) → (𝐴 ≤ 𝐶 → (𝐴 +e 𝐵) ≤ (𝐶 +e 𝐵))) |
| 7 | simprr 785 | . . 3 ⊢ (((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) ∧ (𝐶 ∈ ℝ* ∧ 𝐷 ∈ ℝ*)) → 𝐷 ∈ ℝ*) | |
| 8 | xleadd2a 13391 | . . . 4 ⊢ (((𝐵 ∈ ℝ* ∧ 𝐷 ∈ ℝ* ∧ 𝐶 ∈ ℝ*) ∧ 𝐵 ≤ 𝐷) → (𝐶 +e 𝐵) ≤ (𝐶 +e 𝐷)) | |
| 9 | 8 | ex 418 | . . 3 ⊢ ((𝐵 ∈ ℝ* ∧ 𝐷 ∈ ℝ* ∧ 𝐶 ∈ ℝ*) → (𝐵 ≤ 𝐷 → (𝐶 +e 𝐵) ≤ (𝐶 +e 𝐷))) |
| 10 | 3, 7, 2, 9 | syl3anc 1398 | . 2 ⊢ (((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) ∧ (𝐶 ∈ ℝ* ∧ 𝐷 ∈ ℝ*)) → (𝐵 ≤ 𝐷 → (𝐶 +e 𝐵) ≤ (𝐶 +e 𝐷))) |
| 11 | xaddcl 13376 | . . . 4 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) → (𝐴 +e 𝐵) ∈ ℝ*) | |
| 12 | 11 | adantr 486 | . . 3 ⊢ (((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) ∧ (𝐶 ∈ ℝ* ∧ 𝐷 ∈ ℝ*)) → (𝐴 +e 𝐵) ∈ ℝ*) |
| 13 | xaddcl 13376 | . . . 4 ⊢ ((𝐶 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) → (𝐶 +e 𝐵) ∈ ℝ*) | |
| 14 | 2, 3, 13 | syl2anc 596 | . . 3 ⊢ (((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) ∧ (𝐶 ∈ ℝ* ∧ 𝐷 ∈ ℝ*)) → (𝐶 +e 𝐵) ∈ ℝ*) |
| 15 | xaddcl 13376 | . . . 4 ⊢ ((𝐶 ∈ ℝ* ∧ 𝐷 ∈ ℝ*) → (𝐶 +e 𝐷) ∈ ℝ*) | |
| 16 | 15 | adantl 487 | . . 3 ⊢ (((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) ∧ (𝐶 ∈ ℝ* ∧ 𝐷 ∈ ℝ*)) → (𝐶 +e 𝐷) ∈ ℝ*) |
| 17 | xrletr 13294 | . . 3 ⊢ (((𝐴 +e 𝐵) ∈ ℝ* ∧ (𝐶 +e 𝐵) ∈ ℝ* ∧ (𝐶 +e 𝐷) ∈ ℝ*) → (((𝐴 +e 𝐵) ≤ (𝐶 +e 𝐵) ∧ (𝐶 +e 𝐵) ≤ (𝐶 +e 𝐷)) → (𝐴 +e 𝐵) ≤ (𝐶 +e 𝐷))) | |
| 18 | 12, 14, 16, 17 | syl3anc 1398 | . 2 ⊢ (((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) ∧ (𝐶 ∈ ℝ* ∧ 𝐷 ∈ ℝ*)) → (((𝐴 +e 𝐵) ≤ (𝐶 +e 𝐵) ∧ (𝐶 +e 𝐵) ≤ (𝐶 +e 𝐷)) → (𝐴 +e 𝐵) ≤ (𝐶 +e 𝐷))) |
| 19 | 6, 10, 18 | syl2and 620 | 1 ⊢ (((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) ∧ (𝐶 ∈ ℝ* ∧ 𝐷 ∈ ℝ*)) → ((𝐴 ≤ 𝐶 ∧ 𝐵 ≤ 𝐷) → (𝐴 +e 𝐵) ≤ (𝐶 +e 𝐷))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 ∧ w3a 1103 ∈ wcel 2144 class class class wbr 5102 (class class class)co 7424 ℝ*cxr 11349 ≤ cle 11351 +e cxad 13246 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-sep 5248 ax-nul 5259 ax-pow 5327 ax-pr 5391 ax-un 7755 ax-cnex 11263 ax-resscn 11264 ax-1cn 11265 ax-icn 11266 ax-addcl 11267 ax-addrcl 11268 ax-mulcl 11269 ax-mulrcl 11270 ax-mulcom 11271 ax-addass 11272 ax-mulass 11273 ax-distr 11274 ax-i2m1 11275 ax-1ne0 11276 ax-1rid 11277 ax-rnegex 11278 ax-rrecex 11279 ax-cnre 11280 ax-pre-lttri 11281 ax-pre-lttrn 11282 ax-pre-ltadd 11283 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3848 df-ss 3897 df-dif 4046 df-in 4090 df-un 4150 df-nul 4278 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-id 5546 df-po 5559 df-so 5560 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-iota 6497 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-ov 7427 df-oprab 7428 df-mpo 7429 df-1st 8005 df-2nd 8006 df-er 8724 df-en 8981 df-dom 8982 df-sdom 8983 df-pnf 11352 df-mnf 11353 df-xr 11354 df-ltxr 11355 df-le 11356 df-xadd 13249 |
| This theorem is used by: metnrmlem3 25190 xraddge02 33399 xrofsup 33409 esumpmono 34761 xadd0ge 46442 sge0split 47527 |
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