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| Mirrors > Home > MPE Home > Th. List > inpreima | Structured version Visualization version GIF version | ||
| Description: Preimage of an intersection. (Contributed by Jeff Madsen, 2-Sep-2009.) (Proof shortened by Mario Carneiro, 14-Jun-2016.) |
| Ref | Expression |
|---|---|
| inpreima | ⊢ (Fun 𝐹 → (◡𝐹 “ (𝐴 ∩ 𝐵)) = ((◡𝐹 “ 𝐴) ∩ (◡𝐹 “ 𝐵))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | funcnvcnv 6599 | . 2 ⊢ (Fun 𝐹 → Fun ◡◡𝐹) | |
| 2 | imain 6617 | . 2 ⊢ (Fun ◡◡𝐹 → (◡𝐹 “ (𝐴 ∩ 𝐵)) = ((◡𝐹 “ 𝐴) ∩ (◡𝐹 “ 𝐵))) | |
| 3 | 1, 2 | syl 18 | 1 ⊢ (Fun 𝐹 → (◡𝐹 “ (𝐴 ∩ 𝐵)) = ((◡𝐹 “ 𝐴) ∩ (◡𝐹 “ 𝐵))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 ∩ cin 3898 ◡ccnv 5650 “ cima 5654 Fun wfun 6525 |
| 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-10 2178 ax-12 2213 ax-ext 2733 ax-sep 5249 ax-pr 5391 |
| 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-nf 1817 df-sb 2100 df-mo 2565 df-clab 2740 df-cleq 2753 df-clel 2836 df-ral 3078 df-rex 3088 df-rab 3414 df-v 3453 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4280 df-if 4483 df-sn 4585 df-pr 4587 df-op 4591 df-br 5104 df-opab 5168 df-id 5546 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-fun 6533 |
| This theorem is used by: cnvimainrn 7058 sspreima 7059 fimacnvinrn 7063 fsuppeq 8176 fsuppeqg 8177 ofco2 22746 cnrest2 23584 cnhaus 23652 kgencn3 23857 qtoptop2 23998 basqtop 24010 ismbfd 25940 mbfimaopn2 25958 i1fima 25979 i1fima2 25980 i1fd 25982 disjpreima 33160 smfco 47756 predisj 49865 |
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