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| Mirrors > Home > MPE Home > Th. List > xrsmul | Structured version Visualization version GIF version | ||
| Description: The multiplication operation of the extended real number structure. (Contributed by Mario Carneiro, 21-Aug-2015.) |
| Ref | Expression |
|---|---|
| xrsmul | ⊢ ·e = (.r‘ℝ*𝑠) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | xmulf 13219 | . . 3 ⊢ ·e :(ℝ* × ℝ*)⟶ℝ* | |
| 2 | xrex 12932 | . . . 4 ⊢ ℝ* ∈ V | |
| 3 | 2, 2 | xpex 7699 | . . 3 ⊢ (ℝ* × ℝ*) ∈ V |
| 4 | fex2 7880 | . . 3 ⊢ (( ·e :(ℝ* × ℝ*)⟶ℝ* ∧ (ℝ* × ℝ*) ∈ V ∧ ℝ* ∈ V) → ·e ∈ V) | |
| 5 | 1, 3, 2, 4 | mp3an 1470 | . 2 ⊢ ·e ∈ V |
| 6 | df-xrs 17461 | . . 3 ⊢ ℝ*𝑠 = ({〈(Base‘ndx), ℝ*〉, 〈(+g‘ndx), +𝑒 〉, 〈(.r‘ndx), ·e 〉} ∪ {〈(TopSet‘ndx), (ordTop‘ ≤ )〉, 〈(le‘ndx), ≤ 〉, 〈(dist‘ndx), (𝑥 ∈ ℝ*, 𝑦 ∈ ℝ* ↦ if(𝑥 ≤ 𝑦, (𝑦 +𝑒 -𝑒𝑥), (𝑥 +𝑒 -𝑒𝑦)))〉}) | |
| 7 | 6 | odrngmulr 17364 | . 2 ⊢ ( ·e ∈ V → ·e = (.r‘ℝ*𝑠)) |
| 8 | 5, 7 | ax-mp 5 | 1 ⊢ ·e = (.r‘ℝ*𝑠) |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1548 ∈ wcel 2121 Vcvv 3433 ifcif 4456 class class class wbr 5074 × cxp 5618 ⟶wf 6484 ‘cfv 6488 (class class class)co 7359 ∈ cmpo 7361 ℝ*cxr 11174 ≤ cle 11176 -𝑒cxne 13055 +𝑒 cxad 13056 ·e cxmu 13057 .rcmulr 17216 ordTopcordt 17458 ℝ*𝑠cxrs 17459 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1975 ax-7 2016 ax-8 2123 ax-9 2131 ax-10 2154 ax-11 2170 ax-12 2191 ax-ext 2713 ax-sep 5220 ax-nul 5230 ax-pow 5296 ax-pr 5364 ax-un 7681 ax-cnex 11090 ax-resscn 11091 ax-1cn 11092 ax-icn 11093 ax-addcl 11094 ax-addrcl 11095 ax-mulcl 11096 ax-mulrcl 11097 ax-mulcom 11098 ax-addass 11099 ax-mulass 11100 ax-distr 11101 ax-i2m1 11102 ax-1ne0 11103 ax-1rid 11104 ax-rnegex 11105 ax-rrecex 11106 ax-cnre 11107 ax-pre-lttri 11108 ax-pre-lttrn 11109 ax-pre-ltadd 11110 ax-pre-mulgt0 11111 |
| This theorem depends on definitions: df-bi 209 df-an 398 df-or 855 df-3or 1094 df-3an 1095 df-tru 1551 df-fal 1561 df-ex 1788 df-nf 1792 df-sb 2075 df-mo 2545 df-eu 2575 df-clab 2720 df-cleq 2733 df-clel 2816 df-nfc 2890 df-ne 2937 df-nel 3041 df-ral 3056 df-rex 3066 df-reu 3347 df-rab 3394 df-v 3435 df-sbc 3725 df-csb 3833 df-dif 3887 df-un 3889 df-in 3891 df-ss 3901 df-pss 3904 df-nul 4264 df-if 4457 df-pw 4533 df-sn 4558 df-pr 4560 df-tp 4562 df-op 4564 df-uni 4841 df-iun 4925 df-br 5075 df-opab 5137 df-mpt 5156 df-tr 5182 df-id 5515 df-eprel 5520 df-po 5528 df-so 5529 df-fr 5573 df-we 5575 df-xp 5626 df-rel 5627 df-cnv 5628 df-co 5629 df-dm 5630 df-rn 5631 df-res 5632 df-ima 5633 df-pred 6255 df-ord 6316 df-on 6317 df-lim 6318 df-suc 6319 df-iota 6444 df-fun 6490 df-fn 6491 df-f 6492 df-f1 6493 df-fo 6494 df-f1o 6495 df-fv 6496 df-riota 7316 df-ov 7362 df-oprab 7363 df-mpo 7364 df-om 7810 df-1st 7933 df-2nd 7934 df-frecs 8224 df-wrecs 8255 df-recs 8304 df-rdg 8343 df-1o 8399 df-er 8637 df-en 8888 df-dom 8889 df-sdom 8890 df-fin 8891 df-pnf 11177 df-mnf 11178 df-xr 11179 df-ltxr 11180 df-le 11181 df-sub 11375 df-neg 11376 df-nn 12170 df-2 12239 df-3 12240 df-4 12241 df-5 12242 df-6 12243 df-7 12244 df-8 12245 df-9 12246 df-n0 12433 df-z 12520 df-dec 12640 df-uz 12784 df-xmul 13060 df-fz 13457 df-struct 17112 df-slot 17147 df-ndx 17159 df-base 17175 df-plusg 17228 df-mulr 17229 df-tset 17234 df-ple 17235 df-ds 17237 df-xrs 17461 |
| This theorem is referenced by: xrsmcmn 21373 |
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