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| Mirrors > Home > ILE Home > Th. List > prodeq1d | GIF version | ||
| Description: Equality deduction for product. (Contributed by Scott Fenton, 4-Dec-2017.) |
| Ref | Expression |
|---|---|
| prodeq1d.1 | ⊢ (𝜑 → 𝐴 = 𝐵) |
| Ref | Expression |
|---|---|
| prodeq1d | ⊢ (𝜑 → ∏𝑘 ∈ 𝐴 𝐶 = ∏𝑘 ∈ 𝐵 𝐶) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | prodeq1d.1 | . 2 ⊢ (𝜑 → 𝐴 = 𝐵) | |
| 2 | prodeq1 11908 | . 2 ⊢ (𝐴 = 𝐵 → ∏𝑘 ∈ 𝐴 𝐶 = ∏𝑘 ∈ 𝐵 𝐶) | |
| 3 | 1, 2 | syl 14 | 1 ⊢ (𝜑 → ∏𝑘 ∈ 𝐴 𝐶 = ∏𝑘 ∈ 𝐵 𝐶) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1373 ∏cprod 11905 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 615 ax-in2 616 ax-io 711 ax-5 1471 ax-7 1472 ax-gen 1473 ax-ie1 1517 ax-ie2 1518 ax-8 1528 ax-10 1529 ax-11 1530 ax-i12 1531 ax-bndl 1533 ax-4 1534 ax-17 1550 ax-i9 1554 ax-ial 1558 ax-i5r 1559 ax-ext 2188 |
| This theorem depends on definitions: df-bi 117 df-dc 837 df-3an 983 df-tru 1376 df-nf 1485 df-sb 1787 df-clab 2193 df-cleq 2199 df-clel 2202 df-nfc 2338 df-ral 2490 df-rex 2491 df-v 2775 df-un 3171 df-in 3173 df-ss 3180 df-if 3573 df-sn 3640 df-pr 3641 df-op 3643 df-uni 3853 df-br 4048 df-opab 4110 df-mpt 4111 df-cnv 4687 df-dm 4689 df-rn 4690 df-res 4691 df-iota 5237 df-f 5280 df-f1 5281 df-fo 5282 df-f1o 5283 df-fv 5284 df-ov 5954 df-oprab 5955 df-mpo 5956 df-recs 6398 df-frec 6484 df-seqfrec 10600 df-proddc 11906 |
| This theorem is referenced by: prodeq12dv 11924 prodeq12rdv 11925 fprodf1o 11943 fprod1 11949 fprodp1 11955 fprodcl2lem 11960 fprodfac 11970 fprodabs 11971 fprod2d 11978 fprodcom2fi 11981 eulerthlemrprm 12595 eulerthlema 12596 gausslemma2dlem4 15585 |
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