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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 5658 | . 2 ⊢ ran (𝐴 × 𝐵) = dom ◡(𝐴 × 𝐵) | |
| 2 | cnvxp 6142 | . . . 4 ⊢ ◡(𝐴 × 𝐵) = (𝐵 × 𝐴) | |
| 3 | 2 | dmeqi 5882 | . . 3 ⊢ dom ◡(𝐴 × 𝐵) = dom (𝐵 × 𝐴) |
| 4 | dmxpss 6158 | . . 3 ⊢ dom (𝐵 × 𝐴) ⊆ 𝐵 | |
| 5 | 3, 4 | eqsstri 3976 | . 2 ⊢ dom ◡(𝐴 × 𝐵) ⊆ 𝐵 |
| 6 | 1, 5 | eqsstri 3976 | 1 ⊢ ran (𝐴 × 𝐵) ⊆ 𝐵 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ⊆ wss 3898 × cxp 5645 ◡ccnv 5646 dom cdm 5647 ran crn 5648 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-ext 2732 ax-sep 5248 ax-pr 5390 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-sb 2100 df-clab 2739 df-cleq 2752 df-clel 2835 df-ne 2956 df-ral 3077 df-rex 3087 df-rab 3413 df-v 3452 df-dif 3901 df-un 3903 df-in 3905 df-ss 3915 df-nul 4279 df-if 4482 df-sn 4584 df-pr 4586 df-op 4590 df-br 5103 df-opab 5167 df-xp 5653 df-rel 5654 df-cnv 5655 df-dm 5657 df-rn 5658 |
| This theorem is used by: ssxpb 6161 ssrnres 6165 resssxp 6261 funssxp 6726 fconst 6756 dff2 7087 dff3 7088 fliftf 7311 frxp2 8139 frxp3 8146 marypha1lem 9403 marypha1 9404 dfac12lem2 10195 brdom4 10581 nqerf 10987 xptrrel 15101 lern 18727 cnconst2 23563 lmss 23578 tsmsxplem1 24434 causs 25581 i1f0 25970 itg10 25971 taylf 26652 noextendseq 27958 perpln2 29120 gsumpart 33558 locfinref 34407 sitg0 34913 heicant 38493 rntrclfvOAI 43640 rtrclex 44561 trclexi 44564 rtrclexi 44565 cnvtrcl0 44570 rntrcl 44572 brtrclfv2 44671 xphe 44725 rfovcnvf1od 44948 |
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