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Mirrors > Home > ILE Home > Th. List > txtopon | Unicode version |
Description: The underlying set of the product of two topologies. (Contributed by Mario Carneiro, 22-Aug-2015.) (Revised by Mario Carneiro, 2-Sep-2015.) |
Ref | Expression |
---|---|
txtopon |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | topontop 13383 |
. . 3
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2 | topontop 13383 |
. . 3
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3 | txtop 13631 |
. . 3
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4 | 1, 2, 3 | syl2an 289 |
. 2
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5 | eqid 2177 |
. . . . 5
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6 | eqid 2177 |
. . . . 5
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7 | eqid 2177 |
. . . . 5
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8 | 5, 6, 7 | txuni2 13627 |
. . . 4
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9 | toponuni 13384 |
. . . . 5
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10 | toponuni 13384 |
. . . . 5
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11 | xpeq12 4644 |
. . . . 5
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12 | 9, 10, 11 | syl2an 289 |
. . . 4
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13 | 5 | txbasex 13628 |
. . . . 5
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14 | unitg 13433 |
. . . . 5
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15 | 13, 14 | syl 14 |
. . . 4
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16 | 8, 12, 15 | 3eqtr4a 2236 |
. . 3
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17 | 5 | txval 13626 |
. . . 4
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18 | 17 | unieqd 3820 |
. . 3
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19 | 16, 18 | eqtr4d 2213 |
. 2
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20 | istopon 13382 |
. 2
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21 | 4, 19, 20 | sylanbrc 417 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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 614 ax-in2 615 ax-io 709 ax-5 1447 ax-7 1448 ax-gen 1449 ax-ie1 1493 ax-ie2 1494 ax-8 1504 ax-10 1505 ax-11 1506 ax-i12 1507 ax-bndl 1509 ax-4 1510 ax-17 1526 ax-i9 1530 ax-ial 1534 ax-i5r 1535 ax-13 2150 ax-14 2151 ax-ext 2159 ax-coll 4117 ax-sep 4120 ax-pow 4173 ax-pr 4208 ax-un 4432 ax-setind 4535 |
This theorem depends on definitions: df-bi 117 df-3an 980 df-tru 1356 df-fal 1359 df-nf 1461 df-sb 1763 df-eu 2029 df-mo 2030 df-clab 2164 df-cleq 2170 df-clel 2173 df-nfc 2308 df-ne 2348 df-ral 2460 df-rex 2461 df-reu 2462 df-rab 2464 df-v 2739 df-sbc 2963 df-csb 3058 df-dif 3131 df-un 3133 df-in 3135 df-ss 3142 df-pw 3577 df-sn 3598 df-pr 3599 df-op 3601 df-uni 3810 df-iun 3888 df-br 4003 df-opab 4064 df-mpt 4065 df-id 4292 df-xp 4631 df-rel 4632 df-cnv 4633 df-co 4634 df-dm 4635 df-rn 4636 df-res 4637 df-ima 4638 df-iota 5177 df-fun 5217 df-fn 5218 df-f 5219 df-f1 5220 df-fo 5221 df-f1o 5222 df-fv 5223 df-ov 5875 df-oprab 5876 df-mpo 5877 df-1st 6138 df-2nd 6139 df-topgen 12697 df-top 13367 df-topon 13380 df-bases 13412 df-tx 13624 |
This theorem is referenced by: txuni 13634 tx1cn 13640 tx2cn 13641 txcnp 13642 txcnmpt 13644 txdis1cn 13649 txlm 13650 lmcn2 13651 cnmpt12 13658 cnmpt2c 13661 cnmpt21 13662 cnmpt2t 13664 cnmpt22 13665 cnmpt22f 13666 cnmpt2res 13668 cnmptcom 13669 txmetcn 13890 limccnp2lem 14016 limccnp2cntop 14017 dvcnp2cntop 14034 dvaddxxbr 14036 dvmulxxbr 14037 dvcoapbr 14042 |
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