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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 5029 | . . 3 ⊢ ∩ 𝐴 = ∩ 𝑥 ∈ 𝐴 𝑥 | |
| 2 | 1 | imaeq2i 6064 | . 2 ⊢ (◡𝐹 “ ∩ 𝐴) = (◡𝐹 “ ∩ 𝑥 ∈ 𝐴 𝑥) |
| 3 | iinpreima 7068 | . 2 ⊢ ((Fun 𝐹 ∧ 𝐴 ≠ ∅) → (◡𝐹 “ ∩ 𝑥 ∈ 𝐴 𝑥) = ∩ 𝑥 ∈ 𝐴 (◡𝐹 “ 𝑥)) | |
| 4 | 2, 3 | eqtrid 2817 | 1 ⊢ ((Fun 𝐹 ∧ 𝐴 ≠ ∅) → (◡𝐹 “ ∩ 𝐴) = ∩ 𝑥 ∈ 𝐴 (◡𝐹 “ 𝑥)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 400 = wceq 1568 ≠ wne 2965 ∅c0 4294 ∩ cint 4917 ∩ ciin 4962 ◡ccnv 5664 “ cima 5668 Fun wfun 6534 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1823 ax-4 1837 ax-5 1938 ax-6 1995 ax-7 2036 ax-8 2152 ax-9 2160 ax-10 2183 ax-12 2220 ax-ext 2742 ax-sep 5262 ax-nul 5274 ax-pr 5408 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1103 df-tru 1571 df-fal 1581 df-ex 1808 df-nf 1812 df-sb 2099 df-mo 2574 df-eu 2604 df-clab 2749 df-cleq 2762 df-clel 2845 df-ne 2966 df-ral 3087 df-rex 3097 df-rab 3424 df-v 3464 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-nul 4295 df-if 4493 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4878 df-int 4918 df-iin 4964 df-br 5115 df-opab 5179 df-id 5560 df-xp 5671 df-rel 5672 df-cnv 5673 df-co 5674 df-dm 5675 df-rn 5676 df-res 5677 df-ima 5678 df-iota 6496 df-fun 6542 df-fn 6543 df-fv 6548 |
| This theorem is referenced by: subbascn 23394 |
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