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| Mirrors > Home > MPE Home > Th. List > rnxpss | Structured version Visualization version GIF version | ||
| Description: The range of a Cartesian product is included in its second factor. (Contributed by NM, 16-Jan-2006.) (Proof shortened by Andrew Salmon, 27-Aug-2011.) |
| Ref | Expression |
|---|---|
| rnxpss | ⊢ ran (𝐴 × 𝐵) ⊆ 𝐵 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-rn 5630 | . 2 ⊢ ran (𝐴 × 𝐵) = dom ◡(𝐴 × 𝐵) | |
| 2 | cnvxp 6109 | . . . 4 ⊢ ◡(𝐴 × 𝐵) = (𝐵 × 𝐴) | |
| 3 | 2 | dmeqi 5848 | . . 3 ⊢ dom ◡(𝐴 × 𝐵) = dom (𝐵 × 𝐴) |
| 4 | dmxpss 6123 | . . 3 ⊢ dom (𝐵 × 𝐴) ⊆ 𝐵 | |
| 5 | 3, 4 | eqsstri 3977 | . 2 ⊢ dom ◡(𝐴 × 𝐵) ⊆ 𝐵 |
| 6 | 1, 5 | eqsstri 3977 | 1 ⊢ ran (𝐴 × 𝐵) ⊆ 𝐵 |
| Colors of variables: wff setvar class |
| Syntax hints: ⊆ wss 3898 × cxp 5617 ◡ccnv 5618 dom cdm 5619 ran crn 5620 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-11 2162 ax-ext 2705 ax-sep 5236 ax-nul 5246 ax-pr 5372 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-sb 2068 df-clab 2712 df-cleq 2725 df-clel 2808 df-ne 2930 df-ral 3049 df-rex 3058 df-rab 3397 df-v 3439 df-dif 3901 df-un 3903 df-ss 3915 df-nul 4283 df-if 4475 df-sn 4576 df-pr 4578 df-op 4582 df-br 5094 df-opab 5156 df-xp 5625 df-rel 5626 df-cnv 5627 df-dm 5629 df-rn 5630 |
| This theorem is referenced by: ssxpb 6126 ssrnres 6130 resssxp 6222 funssxp 6684 fconst 6714 dff2 7038 dff3 7039 fliftf 7255 frxp2 8080 frxp3 8087 marypha1lem 9324 marypha1 9325 dfac12lem2 10043 brdom4 10428 nqerf 10828 xptrrel 14889 lern 18499 cnconst2 23199 lmss 23214 tsmsxplem1 24069 causs 25226 i1f0 25616 itg10 25617 taylf 26296 noextendseq 27607 perpln2 28690 gsumpart 33044 locfinref 33875 sitg0 34380 heicant 37715 rntrclfvOAI 42808 rtrclex 43734 trclexi 43737 rtrclexi 43738 cnvtrcl0 43743 rntrcl 43745 brtrclfv2 43844 xphe 43898 rfovcnvf1od 44121 |
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