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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 1143 | . . 3 ⊢ ((⊤ ∧ 𝑥 ∈ 𝐴 ∧ 𝑦 ∈ 𝐵) → 𝐶 = 𝐷) |
| 3 | 2 | mpoeq3dva 7473 | . 2 ⊢ (⊤ → (𝑥 ∈ 𝐴, 𝑦 ∈ 𝐵 ↦ 𝐶) = (𝑥 ∈ 𝐴, 𝑦 ∈ 𝐵 ↦ 𝐷)) |
| 4 | 3 | mptru 1567 | 1 ⊢ (𝑥 ∈ 𝐴, 𝑦 ∈ 𝐵 ↦ 𝐶) = (𝑥 ∈ 𝐴, 𝑦 ∈ 𝐵 ↦ 𝐷) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 399 = wceq 1560 ⊤wtru 1561 ∈ wcel 2142 ∈ cmpo 7398 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1815 ax-4 1829 ax-5 1930 ax-6 1987 ax-7 2028 ax-9 2152 ax-ext 2734 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-3an 1100 df-tru 1563 df-ex 1800 df-sb 2091 df-clab 2741 df-cleq 2754 df-oprab 7400 df-mpo 7401 |
| This theorem is referenced by: mpodifsnif 7511 mposnif 7512 oprab2co 8076 cnfcomlem 9654 cnfcom2 9657 dfioo2 13454 elovmpowrd 14571 sadcom 16497 comfffval2 17733 oppchomf 17752 symgga 19447 oppglsm 19682 dfrhm2 20523 cnfldsub 21452 cnflddiv 21454 mat0op 22479 mattpos1 22516 mdetunilem7 22678 madufval 22697 maducoeval2 22700 madugsum 22703 mp2pm2mplem5 22870 mp2pm2mp 22871 leordtval 23273 xpstopnlem1 23869 divcn 24930 oprpiece1res1 25013 oprpiece1res2 25014 ehl1eudis 25482 ehl2eudis 25484 cxpcn 26810 cnnvm 30885 issply 33858 mdetpmtr2 34121 madjusmdetlem1 34124 cnre2csqima 34208 mndpluscn 34223 raddcn 34226 icorempo 37845 matunitlindflem1 38115 mendplusgfval 43758 hoidmv1le 47168 hspdifhsp 47190 vonn0ioo 47261 vonn0icc 47262 dflinc2 49032 cofuoppf 49771 dfswapf2 49882 diag1a 49926 funcsetc1o 50118 |
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