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Mirrors > Home > MPE Home > Th. List > prodeq1 | Structured version Visualization version GIF version |
Description: Equality theorem for a product. (Contributed by Scott Fenton, 1-Dec-2017.) |
Ref | Expression |
---|---|
prodeq1 | ⊢ (𝐴 = 𝐵 → ∏𝑘 ∈ 𝐴 𝐶 = ∏𝑘 ∈ 𝐵 𝐶) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nfcv 2764 | . 2 ⊢ Ⅎ𝑘𝐴 | |
2 | nfcv 2764 | . 2 ⊢ Ⅎ𝑘𝐵 | |
3 | 1, 2 | prodeq1f 14638 | 1 ⊢ (𝐴 = 𝐵 → ∏𝑘 ∈ 𝐴 𝐶 = ∏𝑘 ∈ 𝐵 𝐶) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1483 ∏cprod 14635 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ral 2917 df-rex 2918 df-rab 2921 df-v 3202 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-sn 4178 df-pr 4180 df-op 4184 df-uni 4437 df-br 4654 df-opab 4713 df-mpt 4730 df-xp 5120 df-cnv 5122 df-dm 5124 df-rn 5125 df-res 5126 df-ima 5127 df-pred 5680 df-iota 5851 df-f 5892 df-f1 5893 df-fo 5894 df-f1o 5895 df-fv 5896 df-ov 6653 df-oprab 6654 df-mpt2 6655 df-wrecs 7407 df-recs 7468 df-rdg 7506 df-seq 12802 df-prod 14636 |
This theorem is referenced by: prodeq1i 14648 prodeq1d 14651 prod1 14674 fprodf1o 14676 fprodss 14678 fprodcllem 14681 fprodmul 14690 fproddiv 14691 fprodconst 14708 fprodn0 14709 fprod2d 14711 fprodmodd 14728 coprmprod 15375 coprmproddvds 15377 fprodexp 39826 fprodabs2 39827 mccl 39830 fprodcn 39832 fprodcncf 40114 dvmptfprod 40160 dvnprodlem3 40163 hoidmvval 40791 ovnhoi 40817 hspmbllem2 40841 fmtnorec2 41455 |
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