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| Mirrors > Home > MPE Home > Th. List > intpreima | Structured version Visualization version GIF version | ||
| Description: Preimage of an intersection. (Contributed by FL, 28-Apr-2012.) |
| Ref | Expression |
|---|---|
| intpreima | ⊢ ((Fun 𝐹 ∧ 𝐴 ≠ ∅) → (◡𝐹 “ ∩ 𝐴) = ∩ 𝑥 ∈ 𝐴 (◡𝐹 “ 𝑥)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | intiin 4992 | . . 3 ⊢ ∩ 𝐴 = ∩ 𝑥 ∈ 𝐴 𝑥 | |
| 2 | 1 | imaeq2i 6017 | . 2 ⊢ (◡𝐹 “ ∩ 𝐴) = (◡𝐹 “ ∩ 𝑥 ∈ 𝐴 𝑥) |
| 3 | iinpreima 7014 | . 2 ⊢ ((Fun 𝐹 ∧ 𝐴 ≠ ∅) → (◡𝐹 “ ∩ 𝑥 ∈ 𝐴 𝑥) = ∩ 𝑥 ∈ 𝐴 (◡𝐹 “ 𝑥)) | |
| 4 | 2, 3 | eqtrid 2788 | 1 ⊢ ((Fun 𝐹 ∧ 𝐴 ≠ ∅) → (◡𝐹 “ ∩ 𝐴) = ∩ 𝑥 ∈ 𝐴 (◡𝐹 “ 𝑥)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 397 = wceq 1548 ≠ wne 2936 ∅c0 4264 ∩ cint 4880 ∩ ciin 4925 ◡ccnv 5620 “ cima 5624 Fun wfun 6483 |
| 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-12 2191 ax-ext 2713 ax-sep 5221 ax-nul 5231 ax-pr 5365 |
| This theorem depends on definitions: df-bi 209 df-an 398 df-or 855 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-ne 2937 df-ral 3056 df-rex 3066 df-rab 3394 df-v 3435 df-dif 3888 df-un 3890 df-in 3892 df-ss 3902 df-nul 4265 df-if 4458 df-sn 4559 df-pr 4561 df-op 4565 df-uni 4842 df-int 4881 df-iin 4927 df-br 5076 df-opab 5138 df-id 5516 df-xp 5627 df-rel 5628 df-cnv 5629 df-co 5630 df-dm 5631 df-rn 5632 df-res 5633 df-ima 5634 df-iota 6445 df-fun 6491 df-fn 6492 df-fv 6497 |
| This theorem is referenced by: subbascn 23241 |
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