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| Mirrors > Home > ILE Home > Th. List > tposeq | GIF version | ||
| Description: Equality theorem for transposition. (Contributed by Mario Carneiro, 10-Sep-2015.) |
| Ref | Expression |
|---|---|
| tposeq | ⊢ (𝐹 = 𝐺 → tpos 𝐹 = tpos 𝐺) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqimss 3281 | . . 3 ⊢ (𝐹 = 𝐺 → 𝐹 ⊆ 𝐺) | |
| 2 | tposss 6412 | . . 3 ⊢ (𝐹 ⊆ 𝐺 → tpos 𝐹 ⊆ tpos 𝐺) | |
| 3 | 1, 2 | syl 14 | . 2 ⊢ (𝐹 = 𝐺 → tpos 𝐹 ⊆ tpos 𝐺) |
| 4 | eqimss2 3282 | . . 3 ⊢ (𝐹 = 𝐺 → 𝐺 ⊆ 𝐹) | |
| 5 | tposss 6412 | . . 3 ⊢ (𝐺 ⊆ 𝐹 → tpos 𝐺 ⊆ tpos 𝐹) | |
| 6 | 4, 5 | syl 14 | . 2 ⊢ (𝐹 = 𝐺 → tpos 𝐺 ⊆ tpos 𝐹) |
| 7 | 3, 6 | eqssd 3244 | 1 ⊢ (𝐹 = 𝐺 → tpos 𝐹 = tpos 𝐺) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1397 ⊆ wss 3200 tpos ctpos 6410 |
| 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-io 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-14 2205 ax-ext 2213 ax-sep 4207 ax-pow 4264 ax-pr 4299 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ral 2515 df-rex 2516 df-v 2804 df-un 3204 df-in 3206 df-ss 3213 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-br 4089 df-opab 4151 df-mpt 4152 df-xp 4731 df-rel 4732 df-cnv 4733 df-co 4734 df-dm 4735 df-res 4737 df-tpos 6411 |
| This theorem is referenced by: tposeqd 6414 tposeqi 6443 |
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