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| Mirrors > Home > MPE Home > Th. List > mpoeq3ia | Structured version Visualization version GIF version | ||
| Description: An equality inference for the maps-to notation. (Contributed by Mario Carneiro, 16-Dec-2013.) |
| Ref | Expression |
|---|---|
| mpoeq3ia.1 | ⊢ ((𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐵) → 𝐶 = 𝐷) |
| Ref | Expression |
|---|---|
| mpoeq3ia | ⊢ (𝑥 ∈ 𝐴, 𝑦 ∈ 𝐵 ↦ 𝐶) = (𝑥 ∈ 𝐴, 𝑦 ∈ 𝐵 ↦ 𝐷) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | mpoeq3ia.1 | . . . 4 ⊢ ((𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐵) → 𝐶 = 𝐷) | |
| 2 | 1 | 3adant1 1136 | . . 3 ⊢ ((⊤ ∧ 𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐵) → 𝐶 = 𝐷) |
| 3 | 2 | mpoeq3dva 7433 | . 2 ⊢ (⊤ → (𝑥 ∈ 𝐴, 𝑦 ∈ 𝐵 ↦ 𝐶) = (𝑥 ∈ 𝐴, 𝑦 ∈ 𝐵 ↦ 𝐷)) |
| 4 | 3 | mptru 1554 | 1 ⊢ (𝑥 ∈ 𝐴, 𝑦 ∈ 𝐵 ↦ 𝐶) = (𝑥 ∈ 𝐴, 𝑦 ∈ 𝐵 ↦ 𝐷) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 396 = wceq 1547 ⊤wtru 1548 ∈ wcel 2119 ∈ cmpo 7358 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-9 2129 ax-ext 2711 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-3an 1094 df-tru 1550 df-ex 1787 df-sb 2074 df-clab 2718 df-cleq 2731 df-oprab 7360 df-mpo 7361 |
| This theorem is referenced by: mpodifsnif 7471 mposnif 7472 oprab2co 8036 cnfcomlem 9611 cnfcom2 9614 dfioo2 13394 elovmpowrd 14511 sadcom 16423 comfffval2 17658 oppchomf 17677 symgga 19373 oppglsm 19608 dfrhm2 20445 cnfldsub 21375 cnflddiv 21377 mat0op 22402 mattpos1 22439 mdetunilem7 22601 madufval 22620 maducoeval2 22623 madugsum 22626 mp2pm2mplem5 22793 mp2pm2mp 22794 leordtval 23196 xpstopnlem1 23792 divcn 24853 oprpiece1res1 24936 oprpiece1res2 24937 ehl1eudis 25405 ehl2eudis 25407 cxpcn 26727 cnnvm 30771 issply 33745 mdetpmtr2 34008 madjusmdetlem1 34011 cnre2csqima 34095 mndpluscn 34110 raddcn 34113 icorempo 37713 matunitlindflem1 37983 mendplusgfval 43626 hoidmv1le 47037 hspdifhsp 47059 vonn0ioo 47130 vonn0icc 47131 dflinc2 48901 cofuoppf 49640 dfswapf2 49751 diag1a 49795 funcsetc1o 49987 |
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