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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 5666 | . 2 ⊢ ran (𝐴 × 𝐵) = dom ◡(𝐴 × 𝐵) | |
| 2 | cnvxp 6159 | . . . 4 ⊢ ◡(𝐴 × 𝐵) = (𝐵 × 𝐴) | |
| 3 | 2 | dmeqi 5893 | . . 3 ⊢ dom ◡(𝐴 × 𝐵) = dom (𝐵 × 𝐴) |
| 4 | dmxpss 6175 | . . 3 ⊢ dom (𝐵 × 𝐴) ⊆ 𝐵 | |
| 5 | 3, 4 | eqsstri 3959 | . 2 ⊢ dom ◡(𝐴 × 𝐵) ⊆ 𝐵 |
| 6 | 1, 5 | eqsstri 3959 | 1 ⊢ ran (𝐴 × 𝐵) ⊆ 𝐵 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ⊆ wss 3900 × cxp 5653 ◡ccnv 5654 dom cdm 5655 ran crn 5656 |
| 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 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-ext 2735 ax-sep 5252 ax-pr 5395 |
| 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 2102 df-clab 2742 df-cleq 2755 df-clel 2839 df-ne 2960 df-ral 3081 df-rex 3091 df-rab 3417 df-v 3456 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-sn 4589 df-pr 4591 df-op 4839 df-br 5107 df-opab 5171 df-xp 5661 df-rel 5662 df-cnv 5663 df-dm 5665 df-rn 5666 |
| This theorem is used by: ssxpb 6178 ssrnres 6182 resssxp 6290 funssxp 6760 fconst 6790 dff2 7123 dff3 7124 fliftf 7346 frxp2 8188 frxp3 8195 marypha1lem 9452 marypha1 9453 dfac12lem2 10250 brdom4 10636 nqerf 11042 xptrrel 15162 lern 18794 cnconst2 23631 lmss 23646 tsmsxplem1 24502 causs 25649 i1f0 26038 itg10 26039 taylf 26718 noextendseq 28054 perpln2 29216 gsumpart 33694 locfinref 34543 sitg0 35048 heicant 38765 rntrclfvOAI 43895 rtrclex 44809 trclexi 44812 rtrclexi 44813 cnvtrcl0 44818 rntrcl 44820 brtrclfv2 44919 xphe 44973 rfovcnvf1od 45196 rnhfstructsshf 46225 |
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