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| Mirrors > Home > MPE Home > Th. List > Mathboxes > mptfcl | Structured version Visualization version GIF version | ||
| Description: Interpret range of a maps-to notation as a constraint on the definition. (Contributed by Stefan O'Rear, 10-Oct-2014.) |
| Ref | Expression |
|---|---|
| mptfcl | ⊢ ((𝑡 ∈ 𝐴 ↦ 𝐵):𝐴⟶𝐶 → (𝑡 ∈ 𝐴 → 𝐵 ∈ 𝐶)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqid 2736 | . . 3 ⊢ (𝑡 ∈ 𝐴 ↦ 𝐵) = (𝑡 ∈ 𝐴 ↦ 𝐵) | |
| 2 | 1 | fmpt 7055 | . 2 ⊢ (∀𝑡 ∈ 𝐴 𝐵 ∈ 𝐶 ↔ (𝑡 ∈ 𝐴 ↦ 𝐵):𝐴⟶𝐶) |
| 3 | rsp 3224 | . 2 ⊢ (∀𝑡 ∈ 𝐴 𝐵 ∈ 𝐶 → (𝑡 ∈ 𝐴 → 𝐵 ∈ 𝐶)) | |
| 4 | 2, 3 | sylbir 235 | 1 ⊢ ((𝑡 ∈ 𝐴 ↦ 𝐵):𝐴⟶𝐶 → (𝑡 ∈ 𝐴 → 𝐵 ∈ 𝐶)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2113 ∀wral 3051 ↦ cmpt 5179 ⟶wf 6488 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2184 ax-ext 2708 ax-sep 5241 ax-nul 5251 ax-pr 5377 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ral 3052 df-rex 3061 df-rab 3400 df-v 3442 df-dif 3904 df-un 3906 df-in 3908 df-ss 3918 df-nul 4286 df-if 4480 df-sn 4581 df-pr 4583 df-op 4587 df-br 5099 df-opab 5161 df-mpt 5180 df-id 5519 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-res 5636 df-ima 5637 df-fun 6494 df-fn 6495 df-f 6496 |
| This theorem is referenced by: mzpsubmpt 42985 eq0rabdioph 43018 eqrabdioph 43019 |
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