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Mirrors > Home > MPE Home > Th. List > mpteq1 | Structured version Visualization version GIF version |
Description: An equality theorem for the maps-to notation. (Contributed by Mario Carneiro, 16-Dec-2013.) |
Ref | Expression |
---|---|
mpteq1 | ⊢ (𝐴 = 𝐵 → (𝑥 ∈ 𝐴 ↦ 𝐶) = (𝑥 ∈ 𝐵 ↦ 𝐶)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqidd 2799 | . . 3 ⊢ (𝑥 ∈ 𝐴 → 𝐶 = 𝐶) | |
2 | 1 | rgen 3116 | . 2 ⊢ ∀𝑥 ∈ 𝐴 𝐶 = 𝐶 |
3 | mpteq12 5117 | . 2 ⊢ ((𝐴 = 𝐵 ∧ ∀𝑥 ∈ 𝐴 𝐶 = 𝐶) → (𝑥 ∈ 𝐴 ↦ 𝐶) = (𝑥 ∈ 𝐵 ↦ 𝐶)) | |
4 | 2, 3 | mpan2 690 | 1 ⊢ (𝐴 = 𝐵 → (𝑥 ∈ 𝐴 ↦ 𝐶) = (𝑥 ∈ 𝐵 ↦ 𝐶)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1538 ∈ wcel 2111 ∀wral 3106 ↦ cmpt 5110 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-10 2142 ax-12 2175 ax-ext 2770 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-tru 1541 df-ex 1782 df-nf 1786 df-sb 2070 df-clab 2777 df-cleq 2791 df-clel 2870 df-ral 3111 df-opab 5093 df-mpt 5111 |
This theorem is referenced by: mpteq1d 5119 mpteq1i 5120 tposf12 7900 oarec 8171 wunex2 10149 wuncval2 10158 vrmdfval 18013 pmtrfval 18570 sylow1 18720 sylow2b 18740 sylow3lem5 18748 sylow3 18750 gsumconst 19047 gsum2dlem2 19084 gsumfsum 20158 mvrfval 20658 mplcoe1 20705 mplcoe5 20708 evlsval 20758 coe1fzgsumd 20931 evls1fval 20943 evl1gsumd 20981 mavmul0 21157 madugsum 21248 cramer0 21295 cnmpt1t 22270 cnmpt2t 22278 fmval 22548 symgtgp 22711 prdstgpd 22730 gsumvsca1 30904 gsumvsca2 30905 indv 31381 gsumesum 31428 esumlub 31429 esum2d 31462 sitg0 31714 matunitlindflem1 35053 matunitlindf 35055 sdclem2 35180 fsovcnvlem 40714 ntrneibex 40776 stoweidlem9 42651 sge0sn 43018 sge0iunmptlemfi 43052 sge0isum 43066 ovn02 43207 |
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